1. C:\ INIT 1/25/2016 BY DANIEL R. BARNES REM ITERATE DAILY SUBROUTINE FOR DAY = 1 to 183 DOBUSINESS(DATE,COURSE) NEXT DAY Semester 2, 2015-2016

2. Chemistry Monday 1/25/2016 HOMEWORK: Read your safety contract, fill it out, and get it signed. WARM-UP: Get out a blank piece of paper; Put your name/period/date in the upper right hand corner. Title the paper “Chemistry Warm-Ups S2 5-Week”. Skip a line under your title and write today’s date. Copy the question below and answer it with one or more complete sentences: Q: What is a molecule? What materials are NOT made of molecules? STAMPS: none today – but do turn in your 20 week warm-up packet. It should include any warm-ups from 12/3/15 – 1/19/16. Done with the warm-up? Get started on the homework.

3. Student Safety Contract Rules * This a legal document that can be used as evidence in a court of law. It is to be taken very seriously. * Blue or black ink only. No pencil. No other colors. * No changes: no erasures, no cross-outs, no white-outs. If you make a mistake, you must get a new form and start all over again. * Your parents must date their own signature. Do not date it for them! * You can not take part in lab activities if you have not turned in all the safety documents. You will sit in the middle of the room with goggles and apron on. You can watch your lab group from a distance, but you may not be at the table and you may not touch lab materials.

4. NO TALKING Headphones OK Chemistry: 11.1: Read, take notes, prpr

5. Environmental Science Monday 1/25/2016 Homework: 11.1 reading notes Warm-up: Get out a blank piece of notebook paper. Put name, period, and date in the upper right hand corner. Title the sheet “Enviro Sci Warm-Ups S2, 5-Week” Skip a line. Write today’s date. Copy the question below and answer it with one or more complete sentences. Q: What do you call a community of organisms plus the physical environment in which they live? Stamps: none Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

7. NO TALKING Headphones OK Enviro Sci 11.1: Read, take notes

8. Chemistry Tuesday 1/26/2016 HOMEWORK: 11.1 Reading notes & Practice Problems (self- correct!) WARM-UP: Get out yesterday’s warm-up sheet. Skip a line under yesterday’s warm-up. Put today’s date. Copy the question below and answer it with one or more complete sentences: Q: What turns into what during a chemical reaction? STAMPS: none today – safety contract due instead Done w/warm up? Get started on the homework!

9. Environmental Science Tuesday 1/26/2016 Homework: 11.1 formative assessment Warm-up: Get out yesterday’s warm-up sheet. Skip a line after yesterday’s warm-up and put today’s date. Beneath that, copy the question shown below and answer it with one or more complete sentences. Q: What river drains water from the largest watershed in the United States? Stamps: 11.1 reading notes Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

10. Environmental Science Tuesday 1/26/2016 Q: What river drains water from the largest watershed in the United States? A: The Mississippi River

11. NO TALKING Headphones OK Enviro Sci 11.1: Formative Assessment

12. Chemistry Wednesday 1/27/2016 HOMEWORK: none... until we can work on equation balancing in class together... Just get your safety documents completed. WARM-UP: Describe how broken glass is to be cleaned up. STAMPS: 11.1 reading notes, practice problems Done w/warm up? Get started on the homework!

13. STAMPS * I stamp bookwork. * 1 stamp = 1 point at the end of a unit when you turn in your bookwork, along with other stuff, in the form of a unit packet. * To get stamps, work must be done on time. * To get a stamp, you must keep your work organized enough in your binder that you can find it quickly when I announce that I am stamping. * To get a stamp, you have to pay attention and get out your work when I announce that I’m stamping. * If you miss stamping because you’re tardy, you don’t get that day’s worked stamped, unless you have note, of course. * If you are absent, you must show proof of absence clearance in order to get notes or non-math questions stamped. * I typically allow extra time for the completion of question sections that involve math, since even honest, sincere students often don’t “get it” the first night it is assigned.

14. Environmental Science Wednesday 1/27/2016 Homework: 11.2 reading notes Warm-up: What is the difference between porosity and permeability? Stamps: 11.1 formative assessment Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

15. Environmental Science Wednesday 1/27/2016 Warm-up: What is the difference between porosity and permeability? A: Porosity = the % of rock that is space (... that can be filled with water) Permeability = how easy it is for water to flow through the rock

16. Chemistry Thursday 1/28/2016 HOMEWORK: Once again, nothing from the book just yet. However, make sure your lab docs are in order. WARM-UP: What do you do when someone gets chemicals in their eyes? STAMPS: none today Done w/warm up? Try 11.1 section assessment & beyond. At least read it.

17. Environmental Science Thursday 1/28/2016 Homework: 11.2 formative assessment Warm-up: Where does the water come from that feeds the Mississippi River? Stamps: 11.2 reading notes Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

18. Environmental Science Thursday 1/28/2016 Warm-up: Where does the water come from that feeds the Mississippi River? A = the entire Mississippi River Watershed = all the places where runoff goes into rivers that are tributaries of the Mississippi River.

19. Chemistry Friday 1/29/2016 HOMEWORK: 11.1 practice problems, section assessment WARM-UP: How do you use a fire extinguisher? STAMPS: none today... resumes Monday... Done w/warm up? Get started on the homework!

20. Environmental Science Friday 1/29/2016 Homework: 11.3 notes Warm-up: What is desalination, and why don’t we do it a lot here? Stamps: 11.2 formative assessment Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

21. Environmental Science Friday 1/29/2016 Warm-up: What is desalination, and why don’t we do it a lot here? A: Desalination is the process of removing salt from salt water. We don’t do it here, even though we’re having a drought, because it’s so expensive.

22. Chemistry Monday 2/1/2016 HOMEWORK: 11.2 reading notes, practice problems. Also, any 11.1 prpr or sxn assmt you weren’t able to do previously due to difficulty. (NOTE: name  formula translation- required problems honors only. Normal may skip them.) WARM-UP: What is the difference between a coefficient and a subscript? STAMPS: 11.1 prpr, sxn assmt Done w/warm up? Get started on the homework!

23. Environmental Science Monday 2/1/2016 Homework: 11.3 formative assessment Warm-up: What would you call it if hot water from a power plant killed fish in a river? Stamps: 11.3 reading notes Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

24. Environmental Science Monday 2/1/2016 Warm-up: What would you call it if hot water from a power plant killed fish in a river? A = thermal pollution

25. Chemistry Tuesday 2/2/2016 HOMEWORK: HONORS ONLY: 11.2 section assessment + any chapter 09 work you can manage to do. WARM-UP: What does and does not happen to atoms during a chemical reaction?: STAMPS: 11.2 reading notes (required for all students), 11.2 prpr #’s 13-21 (required for honors only) Done w/warm up? Get started on the homework!

26. Environmental Science Tuesday 2/2/2016 Homework: none Warm-up: Who is most damaged by biomagnification? Stamps: 11.3 formative assessment Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

27. Environmental Science Tuesday 2/2/2016 Warm-up: Who is most damaged by biomagnification? A = apex predators, at the top of the food chain/food pyramid

29. Chemistry Wednesday 2/3/2016 HOMEWORK: HONORS ONLY: 11.3 notes & practice problems + any chapter 09 work you can manage to do. WARM-UP: What kind of reaction is the burning of charcoal? STAMPS: 11.2 section assessment (honors content), any ch 09 (notes/prpr/sxn assmt)(honors content) Done w/warm up? Work ahead on the cardboard disc reaction worksheet... IN PENCIL!

30. Environmental Science Wednesday 2/3/2016 Homework: none Warm-up: Name two chemicals used to sanitize drinking water. Stamps: none Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

31. Environmental Science Wednesday 2/3/2016 Warm-up: Name two chemicals used to sanitize drinking water. A = ozone (O 3 ) and chlorine (Cl 2 )

32. Chemistry Thursday 2/4/2016 HOMEWORK: HONORS ONLY: as much ch 09 as you can manage. (No more 11.3 until I’ve updated the ppt in the student vault. Sorry.) WARM-UP: Work ahead on the equation balancing and cartoon-drawing on the Cardboard Disc Reactions worksheet. Remember, do it in PENCIL. STAMPS: 11.3 notes & prpr (honors) any ch 09 (notes/prpr/sxn assmt)(honors) Done w/the worksheet? Work on chapter 09.

33. Environmental Science Thursday 2/4/2016 Homework: none Warm-up: What is xeriscaping? Stamps: none Done with the warm-up? Re-study ch 11... Test Monday... I hope... OUT OF SEAT during roll call = TARDY

34. Environmental Science Thursday 2/4/2016 Warm-up: What is xeriscaping? A = Xeriscaping is planting drought- tolerant plants to reduce how much water is used for irrigation.

35. Chemistry Friday 2/5/2016 HOMEWORK: (HONORS ONLY) 11.3 sxn assmt + as much ch 09 as you can manage, especially the polyatomic ion table on page 257. WARM-UP: What is indicated by the following expression? 7Mg 3 (PO 4 ) 2 STAMPS: any ch 11 prpr or sxn assmt any ch 09 (notes/prpr/sxn assmt)(honors) Done w/the warm-up? Work on ch 09.

36. Environmental Science Friday 2/5/2016 Homework: Study for chapter 11 test (Monday!) Warm-up: When is the best time to run your sprinkler system? Why? Stamps: none Done with the warm-up? Re-study ch 11... Test Monday... I hope... OUT OF SEAT during roll call = TARDY

37. Environmental Science Friday 2/5/2016 Warm-up: When is the best time to run your sprinkler system? Why? A: * When it’s cold, so that there is very little evaporation * When there is no wind, so that the water doesn’t get blown away onto the street or the sidewalk or your house, or, for that matter, evaporated faster, either.

38. Chemistry Monday 2/8/2016 HOMEWORK: Do as much on the 2 nd sheet of the lab packet as you possibly can. Also, DRESS FOR LAB! WARM-UP: What events during a chemical reaction are endothermic? Exothermic? STAMPS: 11.3 sxn assmt & any ch 09 (honors) Done w/the warm-up? Work on the homework!

39. IONIC COMPOUND FORMULA TIPS & RULES * Column number tells you number of valence electrons * Metals like to lose all their valence electrons * Metals become positive ions, nonmetals negative * In chemical names AND formulas, positive ion comes first, negative ion second * Overall, compound must be neutral * Use “criss-cross” shortcut: one element’s charge becomes the other element’s subscript & vice versa * See page 257 for table of polyatomic ion names & formulas * Nonmetal gets “-ide” ending if alone, “-ite” or “-ate” if in a polyatomic ion w/oxygen or some other element * Roman numeral for metals tells you the positive charge * Use parentheses for polyatomic ion if more than one of it

40. Environmental Science Monday 2/8/2016 Homework: 12.1 reading notes Warm-up: Assemble & submit ch 11 work packet Ch 11 bookwork Video notes: Modern Marvels: Water Answer document title = Enviro ch 11 Scratch paper title = SCR 11 Stamps: none Done with the warm-up? Re-study ch 11... Test Monday... I hope... OUT OF SEAT during roll call = TARDY

41. Environmental Science Chapter 11 Screen Questions 2/8/2016 Answer the following on your scratch paper w/complete sentences. 1. What are some advantages and disadvantages of constructing dams? 2. What kind of material is an aquifer typically made of? What about the layers of earth under an aquifer? Why? What affect does human agriculture have on aquifers? Explain. 3. List, describe, and explain several things you and your community can do to conserve water. 4. Tell me all you can about the Mississippi watershed.

42. Chemistry Tuesday 2/9/2016 [NOT DISPLAYED IN CLASS] HOMEWORK: Read parts B & C of the lab procedure. Also, DRESS FOR LAB! WARM-UP: [none][lab execution day, part A of chemical changes and equations lab – goggle & apron up] STAMPS: [none] [Done w/the warm-up? Work on the homework!]

43. Environmental Science Tuesday 2/9/2016 Homework: 12.1 formative assessment Warm-up: Compare and contrast carbon monoxide and carbon dioxide. (Compare & contrast = similarities & differences) Stamps: 12.1 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

44. Environmental Science Tuesday 2/9/2016 Warm-up: Compare and contrast carbon monoxide and carbon dioxide. * CO & CO 2 both produced by burning fuels that have carbon in them. * Only CO 2 is used in photosynthesis * CO is MUCH more poisonous * Both are colorless gases * CO is totally odorless, CO 2 usually * CO 2  greenhouse effect  gl-warming

45. Chemistry Wednesday 2/10/2016 HOMEWORK: Finish the lab worksheet, both the on-sheet and off-sheet questions. WARM-UP: Goggle & apron up. Get out your lab packet & something to write with. Stow your backpack. Sit in your assigned seat. Re-read procedure for parts B & C of lab. STAMPS: none today [Done w/the warm-up? Work on the homework!]

46. Test tube holder: The harder you squeeze, the more it lets go! Everybody, try it with a pencil, now.

49. Environmental Science Wednesday 2/10/2016 Homework: 12.2 reading notes Warm-up: What is the only kind of true zero-emission vehicle? How might even these be indirectly nonzero-emission? Stamps: 12.1 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

50. Environmental Science Wednesday 2/10/2016 Warm-up: What is the only kind of true zero- emission vehicle? How might even these be indirectly nonzero-emission? A: Electric cars emit no fumes or particles... Just noise, and not much. However, the electricity-generating power plants that give your home electricity DO typically burn fossil fuels, so they give off all kinds of air pollution.

51. Chemistry Thursday 2/11/2016 HOMEWORK: Study for ch 11 test. Book, lecture notes, worksheets, lab write-up WARM-UP: Compare and contrast 4O, 2O 2, and O 4. Draw them. STAMPS: none today – except maybe some ch 09 or delayed ch 11 question sets... Official lab submission deadline is next Wednesday [Done w/the warm-up? Work on the homework!]

52. Environmental Science Thursday 2/11/2016 Homework: 12.2 formative assessment Warm-up: How intense is a 40 dB sound compared to a 20 dB sound? Stamps: 12.2 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

53. Environmental Science Thursday 2/11/2016 Warm-up: How intense is a 40 dB sound compared to a 20 dB sound? 30 dB is 10 x more intense than 20 dB 40 dB is 10 x more intense than 30 dB Therefore, 40 dB is 100 x more intense than 20 dB

54. Chemistry Tuesday 2/16/2016 HOMEWORK: Chemical Changes and Equations Lab due Wed 2/17/16 (soft due date). WARM-UP: Assemble your ch 11 packet: ch 09 & ch 11 bookwork, lecture notes, worksheets, anything else? (No warm-ups, no labs.) Put packet in wire basket. Answer doc title = Chem ch 11; Scratch paper title = SCR 11 STAMPS: Approach me if you have any unstamped ch 09 work of any kind or any unstamped ch 11 question sets (prpr or sxn assmt). [Done w/the warm-up? Work on the homework!]

55. Chemistry Chapter 11 Screen Questions 2/16/2016 1. Why is it important to balance chemical equations? 2. What is the name of the following chemicals? Show your math & reasoning wherever possible. a. Sn(NO 2 ) 4 b. CaCO 3 c. (NH 4 ) 3 P 3. Write the balanced chemical equation for when aluminum metal reacts with lead (IV) sulfate. 4. Balance the equation for the combustion of heptane, C 7 H 16. If you’re in honors, try to use the algebraic method for equation- balancing that he demonstrated using Greek letters.

56. Environmental Science Tuesday 2/16/2016 Homework: 12.3 reading notes Warm-up: How much more intense than a chainsaw is a rock concert? Stamps: 12.2 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

57. Environmental Science Tuesday 2/16/2016 Warm-up: How much more intense than a chainsaw is a rock concert? A: According to fig 2.4 on page 312: Rock concert = 120 dB; Chainsaw = 100 dB Every 10 dB diff.  10 x the intensity 120 – 100 = 20 20 / 10 = 2 10 2 = 10 x 10 = 100 (Show this math on scratch paper on tests!)

58. MOSH PIT

59. MOTH PIT

60. Maximizing your Scratch Paper Points 1. Which of the following is used to kill bacteria in treated wastewater before it is returned to a river, lake or ocean? A. chlorine B. glucose C. amino acidsD. Lard On my bubble sheet I would pick “A” On my scratch paper I might write: 1. Chlorine is a poisonous gas that can kill bacteria, people, and other living things. Glucose, a sugar, is a nutrient that can feed bacteria. Amino acids are the building blocks of proteins. They don’t kill bacteria, they feed them. Lard is full of fat and is very edible, so it, too, would only feed bacteria, not kill them.

61. Maximizing your Scratch Paper Points 2. Which of the following would be the most appropriate choice to include in a xeriscaped backyard? A. jungle vines B. rice C. cypress trees and Spanish moss D. cactus On my bubble sheet I would pick “D” On my scratch paper I might write: 2. Xeriscaping is when you landscape your yard so that it requires as little irrigation water as possible. Cacti are desert plants that require very little water, so they are good xeriscaping plants. Jungle vines grow in tropical rainforests and require too much water. Cypress trees and Spanish moss grow in swamps. Rice is cultivated in pond-like paddies.

62. Chemistry Wednesday 2/17/2016 HOMEWORK: 3.2 all (reading notes, practice problems, section assessment) WARM-UP: How many inches are there in 26 miles? STAMPS: none today. Chemical Changes and Equations Lab is due in the wire basket (soft deadline). [Done w/the warm-up? Work on the homework!]

63. Chemistry Chapter 11 Packet List (slide not originally made on 2/16/16, but 4/25/16) 11.1 rn, prpr, sa 11.2 rn, prpr, sa 11.3 rn, prpr, sa Cardboard Disc Reactions worksheet Cardboard Disc notes Equation Balancing Practice worksheet Equation Balancing notes Ch 9 bookwork (whole thing – for honors)

64. NO TALKING Headphones OK* Chemistry: 3.2 all (notes, practice problems, section assessment)

65. Environmental Science Wednesday 2/17/2016 Homework: 12.3 formative assessment Warm-up: What kinds of materials have high pH’s? Low pH’s? Stamps: 12.3 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

66. Environmental Science Wednesday 2/17/2016 Warm-up: What kinds of materials have high pH’s? Low pH’s? A: Bases have high pH’s ( > 7 ) and Acids have low pH’s ( < 7 ) Water is neutral, with a pH of 7

67. Chemistry Thursday 2/18/2016 HOMEWORK: (HONORS) 3.3 reading notes & practice problems WARM-UP: How many millimeters are there in 42 kilometers? STAMPS: 3.2 reading notes, prpr, sxn assmt [Done w/the warm-up? Work on the homework!]

68. Environmental Science Thursday 2/18/2016 Homework: none Warm-up: What causes acid shock? Stamps: 12.3 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

69. Environmental Science Thursday 2/18/2016 Warm-up: What causes acid shock? A: Nitrogen & sulfur oxides in the air from industrial & vehicular pollution  Acidic snow falls in the mountains Acidic snow melts in the spring Acidic runoff floods into lakes, rivers ORGANISMS SUFFER & DIE!

70. Chemistry Friday 2/19/2016 HOMEWORK: (HONORS) 3.3 section assessment WARM-UP: Get a copy of the Metric System Practice Quiz from the front table. There isn’t a red # in the upper right hand corner, so put your name, period, and date there and start working on the quiz. Pretend it’s a real pop quiz, even though it isn’t. STAMPS: 3.3 reading notes, prpr (honors only) Done w/the warm-up? Take a crack at the homework!

71. Environmental Science Friday 2/19/2016 Homework: Read “Killer Smog” on page 319 and answer “What Do You Think” questions. Warm-up: According to page 317, what parts of the world suffer the most from acid precipitation? Stamps: none (nothing due today) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

72. Environmental Science Friday 2/19/2016 Warm-up: According to page 317, what parts of the world suffer the most from acid precipitation? The places with the worst acid rain problem are shown in blue on the map. Eastern North America, northern Europe, eastern China, and northwestern South America have large blue patches.

73. Chemistry Monday 2/22/2016 HOMEWORK: none? WARM-UP: How did the French determine how much mass a gram would be? STAMPS: 3.3 sxn assmt (honors) Done w/the warm-up? Take a crack at the homework! TWO TRIPLE BEAM BALANCES PER TABLE, please. Carry scale with one hand on either end.

74. Mommy, where do grams come from? 1/10,000,000 distance from equator to north pole = 1 meter 1/100 meter = 1 centimeter (cm) 1 cubic centimeter (cc) = 1 milliliter (mL) 1 mL of water has a mass of 1 gram

75. Environmental Science Monday 2/22/2016 Homework: none tonight Warm-up: What weather condition made the “Killer Smog” more deadly, and how? Stamps: Killer Smog question answers Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

76. Environmental Science Monday 2/22/2016 Warm-up: What weather condition made the “Killer Smog” more deadly, and how? A: A temperature inversion did it. A warm layer of air above a cold layer Kept the cold layer from rising, Trapping poisonous dust and gases near the ground. This happens a lot in valleys.

77. Chemistry Tuesday 2/23/2016 HOMEWORK: (Honors) 3.1 all (as much as you can – hard) WARM-UP: Does a triple beam balance measure mass or weight? How do you know? STAMPS: none Done w/the warm-up? Take a crack at the homework! TWO TRIPLE BEAM BALANCES PER TABLE, please. Carry scale with one hand on either end.

78. Chemistry Thursday 2/25/2016 HOMEWORK: 10.1 reading notes, practice problems (TRY!). ALSO: Finish 10.1 reading guide. WARM-UP: Write out Avogadro’s number normally and in scientific notation STAMPS: (honors) 3.1 all (notes, prpr, sxn assmt) Done w/the warm-up? Take a crack at the homework!

79. Environmental Science Thursday 2/25/2016 Homework: 13.1 reading notes Warm-up: What is the difference between weather and climate? Stamps: Killer Smog question answers – mercy stamps! Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

80. Environmental Science Thursday 2/25/2016 Warm-up: What is the difference between weather and climate? A: Weather is the state of the atmosphere at the current moment, whereas Climate is the tendencies of temperature, precipitation, and wind over the long term.

81. An Inconvenient Truth Essay Test Get out a brand new, blank sheet of notebook paper and title it according to the above. Silently, answer the following questions with complete sentences. You have fifteen minutes. * What was the central message of the movie? * What evidence was presented to support that message? * Are you skeptical about any of Al Gore’s claims? Why?

82. Chemistry Friday 2/26/2016 HOMEWORK: Finish the molar mass worksheet if not already completed WARM-UP: What information about a chemical do you need in order to calculate its molar mass? STAMPS: 10.1 reading notes, practice problems Done w/the warm-up? Take a crack at the homework! 5-Week Warm-Up Packet (1/25-2/26/16) due today!

83. 5-Week Warm-Up Packet due today! (1/25-2/26/16) Environmental Science Friday 2/26/2016 Homework: 13.1 formative assessment Warm-up: What is the general relationship between latitude and climate? Stamps: 13.1 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

84. Environmental Science Friday 2/26/2016 Warm-up: What is the general relationship between latitude and climate? A: Generally, the closer a place is to the equator, the hotter it is, so low latitude means high temperature. The closer to the poles, the colder a place is, so high latitude means low temperature.

85. Chemistry Monday 2/29/2016 HOMEWORK: 10.1 section assessment and any practice problems you haven’t done yet. WARM-UP: Get out a brand new piece of paper and title it “10-Week Warm-Up Packet”. Copy the following question and answer it, showing all possible steps: What is 2 x 10 12 divided by 4 x 10 6 ? STAMPS: none today Done w/the warm-up? Get a head start on the homework!

86. Environmental Science Monday 2/29/2016 Homework: 13.2 reading notes Warm-up: Get out a brand new piece of paper and title it “10-Week Warm-Up Packet”. Copy the following question and answer it, showing all possible steps: Where and when can you experience 24 hours without a sunrise or 24 hours without a sunset? Stamps: 13.1 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

87. Environmental Science Monday 2/29/2016 Warm-up: Where and when can you experience 24 hours without a sunrise or 24 hours without a sunset? A: Above the arctic circle or below the Antarctic circle, you can have a day without a sunset on or around summer solstice, and a night without a sunrise on or around winter solstice.

88. Chemistry Tuesday 3/1/2016 HOMEWORK: 10.2 reading notes, practice problems (TRY!) (Also, as always, try any previously undone math problems in ch 10.) WARM-UP: [Correct your 10.1 reading guide, sheet two, using this screen. You can’t read this slide if you’re doing it.] STAMPS: 10.1 section assessment Done w/the warm-up? Get a head start on the homework!

89. Environmental Science Tuesday 3/1/2016 Homework: 13.2 formative assessment Warm-up: What does UV light do to the human body? How does it defend itself? Stamps: 13.2 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

90. Environmental Science Tuesday 3/1/2016 Warm-up: What does UV light do to the human body? How does it defend itself? A: Skin cancer, premature skin aging, cataracts, immune system suppression Melanin = pigment that makes skin darker (tan/brown/black)

91. Chemistry Wednesday 3/2/2016 HOMEWORK: Catch up on your ch 10 practice problems & section assessments. Show up to computer lab tomorrow instead of C215. WARM-UP: Convert 0.0000003214 and 0.00002 to scientific notation and then multiply them by each other. STAMPS: 10.2 reading notes, practice problems Done w/the warm-up? Get a head start on the homework!

92. Convert 0.0000003214 and 0.00002 to scientific notation and then multiply them by each other.

93. Environmental Science Wednesday 3/2/2016 Homework: 13.3 reading notes (due Friday). Show up at the computer lab in the Media Center tomorrow. Warm-up: Where is the main hole in the ozone layer and what gets most of the blame for it? Stamps: 13.2 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

94. Environmental Science Wednesday 3/2/2016 Warm-up: Where is the main hole in the ozone layer and what gets most of the blame for it? A: The hole in the ozone layer is mostly over Antarctica. Most of the blame for the hole in the ozone layer is placed upon CFC’s (chlorofluorocarbons).

95. Chemistry Thursday 3/3/2016 HOMEWORK: Catch up on your ch 10 practice problems & section assessments. WARM-UP: Turn on your computer if it’s not already on. Open up Internet Explorer. Go to hhscougars.org. Find my home page. (My name is Daniel Raymond Barnes.) Go to my Chemistry Power Points page. Open up the Unit Conversion Practice Worksheet power point. Browse through it at your own pace, learning as much as you can from it. STAMPS: nothing new Done w/the warm-up? Get a head start on the homework!

96. Quiz Show Tips * The App: The Quiz Show Lite application is already installed on the computer lab machines, but if you want to run it from your computer at home, you’ll need to use the link on my home page. * Only vs. Cumulative : Quiz Show question files (files ending with.tst) can be “only”, which means just that one chapter, or “cumulative”, which means every chapter up to and including that chapter... Though the chapter set may be based on last year’s order rather than this year’s. * Browsers: Quiz Show does NOT seem to work on Mozilla Firefox, which is why I insist that you use Internet Explorer. Not sure about Google Chrome or Apple Safari. * Restart: Start a new quiz by shutting down Quiz Show entirely and clicking the.tst file you want on hhscougars.org.

97. Environmental Science Thursday 3/3/2016 Homework: 13.3 reading notes Warm-up: Turn on your computer if it’s not already on. Open up Internet Explorer. Go to hhscougars.org. Find my home page. (My name is Daniel Raymond Barnes.) Go to my Environmental Science page. Open and browse the following power point file: “hmcd enviro sci 13 reading guides DRB” Correct the remainder of your reading guide worksheet packet. Stamps: [nothing due today]

98. Chemistry Friday 3/4/2016 HOMEWORK: 10.2 section assessment (try!) WARM-UP: What is our school’s web address? What is my name? What resources have I put there for you? Where and when can you use them? STAMPS: nothing new – just question sets w/math in them Done w/the warm-up? Get a head start on the homework!

99. Because of Club Grub, Food is OK today

100. Environmental Science Friday 3/4/2016 Homework: 13.3 formative assessment Warm-up: When and where can you use Quiz Show? What is it good for? Stamps: 13.3 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

101. Environmental Science Friday 3/4/2016 Warm-up: When and where can you use Quiz Show? What is it good for? A: Once you’ve downloaded the application, you can use Quiz Show on any machine that runs on Windows at any time of day. If you want to use one of the Media Center machines, they’re open until 7 pm Mon-Thurs, and until 5 pm Fridays... more or less... [more]

102. Environmental Science Friday 3/4/2016 Warm-up: When and where can you use Quiz Show? What is it good for? A: It’s good for studying for initial tests and re-takes. Hitting the “explain answer” button might help you understand stuff that didn’t used to make sense and may even teach you new things.

103. Chemistry Monday 3/7/2016 HOMEWORK: 10.3 reading notes, practice problems (honors) WARM-UP: How many molecules are in five moles of oxygen gas? How many atoms? STAMPS: 10.2 section assessment Done w/the warm-up? Get a head start on the homework!

104. Environmental Science Monday 3/7/2016 Homework: Inconvenient Truth essay test re-write (if you want to re-take the quiz @ lunch / after school) Warm-up: What affect on Earth’s climate does burning down tropical rain forests have? Why? Stamps: 13.3 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

105. Warm-up: What affect on Earth’s climate does burning down tropical rain forests have? Why? A: Trees turn into water and carbon dioxide when they burn, so CO 2 levels rise as trees burn. CO 2 is a greenhouse gas, so more CO 2 should cause global warming. Also, when trees are alive, they remove CO 2 from the air, but dead trees don’t photosynthesize.

106. Chemistry Tuesday 3/8/2016 HOMEWORK: 10.3 section assessment (honors) WARM-UP: What are the three “tools” in the mole road map, and what is each tool useful for? STAMPS: 10.3 reading notes, practice problems (honors) Done w/the warm-up? Get a head start on the homework!

107. MOLE ROAD MAP “TOOLS” * molar mass (g/mol): grams to moles or moles to grams * Avogadro's # (6.022 x 10 23 molecules/mol): molecules to moles or moles to molecules * molar volume (22.4 L/mol): L(g) @ STP to moles or moles to L(g) @ STP

108. FOR EVEN MORE UNIT CONVERSION PRACTICE: PHC ch 10 Assessment, pg 315: Q#’s 52 abcd, 58 abcdef, 59 abcdef, 60 ab, 62 abc (b is weird) Answers are in pdf in student vault. SP Book, chapter 8: Sections 8:1, 8:2, 8:4, 8:5, 8:6, 8:7, 8:8

109. Environmental Science Tuesday 3/8/2016 Homework: none, but it would be wise to study chapters 11, 12, and 13 for the upcoming test. Warm-up: What was the central message of “An Inconvenient Truth”? Stamps: Inconvenient Truth essay re-write (optional) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

110. Environmental Science Tuesday 3/8/2016 Warm-up: What was the central message of “An Inconvenient Truth”? A: Certain human activities produce carbon dioxide, a greenhouse gas. CO 2 and other greenhouse gases are causing global warming, which will drastically change the planet, harming resources humans depend upon.

111. Chemistry Wednesday 3/9/2016 HOMEWORK: Get caught up if behind (ch 03, ch 10). If ahead, do ch 10 Assessment #’s 52, 58, 59, 60, 62. WARM-UP: Draw the “mole road map”, as much from memory as possible. STAMPS: 10.3 section assessment Done w/the warm-up? Get a head start on the homework!

112. mol L g molecules molar mass 6 x 10 23 22.4 “STP” The MOLE ROAD MAP

113. MOLES LITERS GRAMS MOLECULES Molar mass Avogadro’s Number Molar Volume The MOLE ROAD MAP

114. Environmental Science Wednesday 3/9/2016 Homework: Re-study ch’s 11, 12, & 13. Test will be tomorrow or Friday. Warm-up: Compare and contrast the ozone hole and global warming problems. Stamps: none Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

115. Warm-up: Compare and contrast the ozone hole and global warming problems.

116. Chemistry Thursday 3/10/2016 HOMEWORK: ch 10 Assessment #’s 52, 58, 59, 60, 62 are now required. Do them. WARM-UP: Describe how you would do the following: 1. Convert grams to moles 2. Convert molecules to L(g) @ STP 3. Convert mL(g) @ STP to kg STAMPS: nothing new & required today... Done w/the warm-up? Get a head start on the homework!

117. Chemistry Thursday 3/10/2016 WARM-UP: Describe how you would do the following: 1. Convert grams to moles Use molar mass (It’s in grams per mole) 2. Convert molecules to L(g) @ STP Use Avogadro’s # to turn molecules to moles Use 22.4 L/mol to turn mol to L 3. Convert mL(g) @ STP to kg Use 1000 mL/L to turn mL to L Use 22.4 L/mol to turn L to mol Use molar mass to turn mol to g Use 1000 g/kg to turn g to kg

118. Environmental Science Thursday 3/10/2016 Homework: Re-study ch’s 11, 12, & 13. Test will be tomorrow (Friday). The textbook, your notes, and QuizShow could all help. Warm-up: Compare and contrast the Montreal Protocol and the Kyoto Protocol Stamps: none Done with the warm-up? Study ch’s 11 and 12. They’ll be on tomorrow’s test along w/ch 13. OUT OF SEAT during roll call = TARDY

119. Environmental Science, Thursday 3/10/2016 Warm-up: Compare and contrast the Montreal Protocol and the Kyoto Protocol. A: Both were international agreements about controlling air pollution. However, the Montreal Protocol was much more successful. Worldwide production of CFCs has gone down nearly to zero since Montreal. However, carbon dioxide production has only continued to go up since Kyoto. 

120. Chemistry Friday 3/11/2016 HOMEWORK: Finish ch 10 Assessment #’s 52, 58, 59, 60, 62 if not yet done. Also, 3.4 all (honors) WARM-UP: I have seven steel boxes. Each box holds 16 rolls of quarters. Each roll holds 40 quarters. How many dollars do I have? STAMPS: nothing new & required today... Done w/the warm-up? Get a head start on the homework!

121. You should be able to guess the answer now. Can you?

122. Environmental Science Friday 3/11/2016 Homework: Gather together all bookwork, worksheets, video notes, and lecture notes from 2/9 – 3/10/16. The ch 12/13 packet will be due on Monday. Warm-up: * Get out two writing devices and one blank sheet of paper (more if you intend to be prolific with your scratch paper). * Answer document title = Enviro Sci 12/13 * Scratch paper title = SCR 12/13 * Stand by for the delivery of the question packets.

123. Environmental Science Chapters 12 & 13 Screen Questions 1. Draw an approximate sketch of global carbon dioxide levels vs time since 1958. Explain the overall trend of the graph as well as any repeating jiggles in it. 2. Compare and contrast the global warming problem and the ozone thinning problem. 3. How loud, relative to each other, are a 30 dB whisper, a 60 dB conversation, and a 100 dB chainsaw? 4. What can you do to reduce the pollution you cause in your life? What good effects might that bring?

124. Chemistry Monday 3/14/2016 HOMEWORK: Study for tomorrow’s test: ch’s 3, 9, 10, & 11, with greatest emphasis on 10.1 & 10.2. WARM-UP: A gold-colored crown has a mass of 3 kg. When submerged in water, it makes the level rise from 1000 mL to 1200 mL. Is it real gold? STAMPS: ch 10 Assessment #’s 52, 58, 59, 60, 62 if not yet done. Also, 3.4 all (honors) Done w/the warm-up? Get a head start on the homework!

125. What is the empirical formula of a chemical that is 36.13% C, 6.08% H, and 57.76% O by mass?

126. Environmental Science Monday 3/14/2016 Homework: 14.1 reading notes Warm-up: Assemble your ch 12/13 packet: All bookwork, worksheets, lecture notes, video notes, & essay test re-writes from 2/9 – 3/10. Stamps: none Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

127. Chemistry Tuesday 3/15/2016 HOMEWORK: Gather all bookwork, lecture notes, worksheets, video notes from 2/17 – 3/14/16. Ch 10 packet due tomorrow. WARM-UP: Answer document title = Chemistry ch 10 Scratch Paper title = SCR 10 STAMPS: Get any unstamped stuff stamped BEFORE the bell rings! Once the bell rings, NO MORE STAMPS THIS UNIT! Test has begun. No more stamps this unit. GET IT STAMPED BEFORE the BELL RINGS!

128. Chemistry Chapter 10 Screen Questions 1. Calculate the % composition of the following: a. Ca 3 (PO 4 ) 2 b. Lead (IV) carbonate 2. What are the empirical formulas of the following? a. 83.12% Na, 16.88% N b. 38.76% Ca, 19.97% P, 41.27% O c. 33.70% C, 6.80% H, 35.91% O, 23.59% N 3. Perform the following arithmetic operations, reporting the answer using the correct number of significant figures. a. 126.3 + 4.7892 + 0.0000409 + 300.400 b. (8.75 x 10 4 ) / (2 x 10 8 ) 4. 100 mL of molten gold has a mass of 1730 g. A 346 kg chunk of mysterious metal sinks in molten gold. What can you tell me about the mysterious chunk of metal?

129. Environmental Science Tuesday 3/15/2016 Homework: 14.1 reading notes (if not done yet) Warm-up: none (watching rest of movie today) Get out the video notes you began taking yesterday. We’ll finish the episode today. Stamps: not today – 14.1 reading notes stamped tomorrow. Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

130. Chemistry Wednesday 3/16/2016 HOMEWORK: 12.1 reading notes, practice problems (TRY!) WARM-UP: Assemble your ch 10 packet. Include any bookwork, lecture notes, video notes, worksheets from 2/17 – 3/14/16. NO WARM-UPS. NO LABS. STAMPS: none today (packet due) Done w/the warm-up? Start on the homework. Today will be a zero talking, headphones-OK, bookwork day.

131. Chapter 10 (& 3) Packet List (from 2/17-3/14/16) * All bookwork from ch’s 3 and 10 * Metric Units lecture notes * Triple Beam Balance lecture notes * Metric System Practice Quiz * Significant Figures ppt notes (honors only) * 10.1 Reading Guide (yellow) * Molar Mass worksheet * Unit Conversion ppt notes * Unit Conversion worksheet * Quiz Show scratch paper * SP Book Ch 8 optional work * % Comp / Empirical Formulas lecture notes (honors only) * Ch 11 Quiz Show notes (normal only)

132. NO TALKING Headphones OK Chemistry: 12.1 notes, practice problems * Make sure no one but you can hear the music. * If it’s distracting, do yourself a favor and turn the music off.

133. Environmental Science Wednesday 3/16/2016 Homework: 14.1 formative assessment Warm-up: What materials is the ground covered with in urban areas? Stamps: 14.1 reading notes. Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

134. Environmental Science Wednesday 3/14/2016 Warm-up: What materials is the ground covered with in urban areas? A: concrete, asphalt, buildings, …?

135. Chemistry Thursday 3/17/2016 HOMEWORK: 12.1 section assessment WARM-UP: Look @ Fig 12.3 on pg 357. What quantities are always conserved, and which ones are not? STAMPS: 12.1 notes, prpr Done w/the warm-up? Start on the homework.

136. Environmental Science Thursday 3/17/2016 Homework: 14.2 reading notes Warm-up: In what parts of the world do most people live in the country? In what parts of the world do most people live in the city? Stamps: 14.1 formative assessment Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

137. Environmental Science Thursday 3/17/2016 Warm-up: In what parts of the world do most people live in the country? In what parts of the world do most people live in the city? A: Country (rural): Africa, Asia City (urban): Europe, South America, North America, Oceania (Look at the bottom of pg 356.)

138. OCEANIA Australia New Guinea New Zealand

139. OCEANIA Easter Island (Rapa Nui)

140. OCEANIA Hawai’i

141. OCEANIA Tonga Samoa

142. Chemistry Friday 3/18/2016 HOMEWORK: 12.2 read, take notes pg 359, do prpr 11 & 12. Proceed further only if you’re brave. WARM-UP: What do coefficients look like? What do they tell you? STAMPS: 12.1 section assessment Done w/the warm-up? Start on the homework.

143. Environmental Science Friday 3/18/2016 Homework: 14.2 formative assessment Warm-up: What is included in the “infrastructure” of a city? Stamps: 14.2 reading notes Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

144. Environmental Science Friday 3/18/2016 Warm-up: What is included in the “infrastructure” of a city? A: Anything a society builds for public use: Ex: roads, sewers, railroads, bridges, canals, fire & police stations, schools, libraries, hospitals, water mains, power lines, power plants, courthouses, swimming pools,...

145. Chemistry Monday 3/21/2016 HOMEWORK: 12.2 read, take notes pg 360, do prpr 13 & 14. Proceed further only if you’re brave. Baby steps. WARM-UP: What is the mole ratio of oxygen gas to sulfur dioxide in the following reaction: ` CS 2 + 3O 2  CO 2 + 2SO 2 STAMPS: 12.2 reading notes pg 359, prpr 11 & 12 Done w/the warm-up? Start on the homework.

146. Environmental Science Monday 3/21/2016 Homework: 14.3 reading notes Warm-up: How is the marginal land development in figure 2.4 on page 360 unusual? Stamps: 14.2 formative assessment Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

147. Environmental Science Monday 3/21/2016 Warm-up: How is the marginal land development in figure 2.4 on page 360 unusual? A: It’s usually the poor folks who have to live on the marginal land. Ironically, it’s only the rich people who can afford to buy houses on top of cliffs with ocean views...... with or without massive erosion.

148. Chemistry Tuesday 3/22/2016 HOMEWORK: Read the procedure for the Baking Soda & Vinegar Limiting Reactant Lab. Translate the instructions into a comic book-like sequence of labeled & captioned pictures. (Your drawings can be crude and simple, so don’t worry if you’re not an artist. ) WARM-UP: Compare and contrast a mole ratio fraction with a true unit conversion fraction. STAMPS: 12.2 reading notes pg 360, prpr 13 & 14 (No early stamps today due to packet pass-back) Done w/the warm-up? Start on the homework.

149. Environmental Science Tuesday 3/22/2016 Homework: 14.3 formative assessment Warm-up: Compare and contrast clear-cutting and selective cutting. Stamps: 14.3 reading notes Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

150. Environmental Science Tuesday 3/22/2016 Warm-up: Compare and contrast clear- cutting and selective cutting. * Both provide wood for houses, furniture, paper... * Clear-cutting leaves no trees standing, whereas selective cutting leaves many. * Clear-cutting is worse for wildlife * Clear-cutting causes more erosion * Clear-cutting is cheaper * Selective cutting “can improve forest health”

151. Environmental Science Tuesday 3/22/2016 Warm-up: Compare and contrast clear- cutting and selective cutting. * Clear-cutting results in same-age regrowth, whereas selective cutting results in trees of various ages  greater biodiversity w/selective cutting. * Selective cutting allows for continuous harvesting year after year  reliable job availability rather than boom/bust economics.

152. What evidence do you see of selective cutting?

153. Chemistry Wednesday 3/23/2016 HOMEWORK: The rest of 12.2 (honors) WARM-UP: Define “gross”, “net”, and “tare”. STAMPS: BS/Vin lab comic strip (2 or 3 stamps depending on size & quality) Done w/the warm-up? Start on the homework.

154. Environmental Science Wednesday 3/23/2016 Homework: none. Sorry. Warm-up: What use do humans make of “rangeland”? Stamps: 14.3 formative assessment Done with the warm-up? Get started on the homework! OUT OF SEAT during roll call = TARDY

155. Environmental Science Tuesday 3/22/2016 Warm-up: What use do humans make of “rangeland”? A: Humans raise livestock on rangeland, such as cows, goats, sheep, llamas, etc.. These animals provide us with meat, milk, wool, leather, and petting zoo buddies.

156. Chemistry Thursday 3/24/2016 HOMEWORK: 12.3 all (honors) WARM-UP: What happens to the mass of the BS/vinegar system when the two chemicals combine? Why? (NaHCO 3 + CH 3 COOH  ?) STAMPS: 12.2 remainder (notes pp 362-365, PrPr 15-20, sxn assmt)(honors) Done w/the warm-up? Start on the homework.

157. FOOD OKAY (Lunch was too short today)

158. Environmental Science Thursday 3/24/2016 Homework: none. Again. Sorry. Warm-up: Read “Restoring the Range” on pp 370-371. What animals and plants have benefited from restoration efforts on the Bamberger Ranch? Stamps: none Done with the warm-up? I don’t believe you. Read that article on 370-371. ACTUALLY read it. OUT OF SEAT during roll call = TARDY

159. Environmental Science Thursday 3/24/2016 Warm-up: What animals and plants have benefited from restoration efforts on the Bamberger Ranch? (pp 370-371) * 48 bird species before  219 species * Less juniper, but more grass & wildflowers * Endangered oryx from Africa (large herd!) * More fish due to erosion control (less mud in the rivers and lakes)

161. Chemistry Monday 4/4/2016 HOMEWORK: 12.3 all (honors) WARM-UP: [none – this is a dummy slide] STAMPS: 12.3 all (honors) Done w/the warm-up? Start on the homework.

162. Environmental Science Monday 4/4/2016 Homework: 15.1 reading notes Warm-up: none – [this is a dummy slide] Stamps: none Done with the warm-up? I don’t believe you. Read that article on 370-371. ACTUALLY read it. OUT OF SEAT during roll call = TARDY

163. Chemistry Tuesday 4/5/2016 HOMEWORK: Do as much of the POST-LAB as you can. WARM-UP: Write down one thing you learned from the video yesterday. Make sure nobody else wrote the same thing. STAMPS: 12.3 all (honors – no doubles, but still full) Done w/the warm-up? Start on the homework.

164. Environmental Science Tuesday 4/5/2016 Homework: 15.1 reading notes Warm-up: Get a “Prehistoric America: Mammoths to Manhattan” worksheet and start answering the questions. Stamps: none Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

165. Chemistry Wednesday 4/6/2016 HOMEWORK: Again, do as much of the POST-LAB as you can. (As soon as we’ve done as much in class as we can, the due date for the lab will be the next day.) WARM-UP: Look up “limiting reagent” and “excess reagent” in the glossary and copy their definitions. What, ultimately, is the limiting reagent in a forest fire? STAMPS: [none today] Done w/the warm-up? Start on the homework.

166. Environmental Science Wednesday 4/6/2016 Homework: 15.1 formative assessment Warm-up: What happened during the “green revolution” in Mexico and India? Stamps: 15.1 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

167. Environmental Science Wednesday 4/6/2016 Warm-up: What happened during the “green revolution” in Mexico and India? A: Mexico increased its wheat production x 8 and India increased its rice production x 2 Without either country using more acres of land to grow them.

168. Chemistry Thursday 4/7/2016 HOMEWORK: Once again, do as much of the POST-LAB as you can. (As soon as we’ve done as much in class as we can, the due date for the lab will be the next day.) WARM-UP: Look up “actual yield” and “theoretical yield” in the glossary of your textbook and copy their definitions. Which of these two did our triple beam balances give us? STAMPS: [none today – still... ] Done w/the warm-up? Start on the homework.

169. Environmental Science Thursday 4/7/2016 Homework: 15.2 reading notes Warm-up: What does the human body need amino acids for? Where do we get them? Stamps: 15.1 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

170. Environmental Science Thursday 4/7/2016 Warm-up: What does the human body need amino acids for? Where do we get them? A: We make proteins out of amino acids. We get amino acids from eating protein- rich foods Ex: meat, eggs, dairy (milk, etc.), grains (corn, wheat, rice), legumes (beans, peanuts, lentils, peas)

171. Chemistry Friday 4/8/2016 HOMEWORK: The Baking Soda and Vinegar Lab is officially due Monday. Read and follow all directions on the entire worksheet. WARM-UP: Describe the process of calculating the mass of one chemical in a reaction (the “unknown”) when you know the mass of another chemical in the reaction (the “known”). STAMPS: [none today – still... again... ] Done w/the warm-up? Start on the homework (the lab).

172. MASS-MASS STOICHIOMETRY * Use the molar mass of the known to convert grams of the known into moles of the known * Use the coefficients to convert moles of the known to moles of the unknown * Use the molar mass of the unknown to convert moles of the unknown to grams of the unknown.

173. Environmental Science Friday 4/8/2016 Homework: 15.2 formative assessment Warm-up: List and describe as many agricultural pests as you can. Stamps: 15.2 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

174. Environmental Science Friday 4/8/2016 Warm-up: List and describe as many agricultural pests as you can. * INSECTS (ex: locusts, boll weevils, aphids, medfly, apple maggot, bark beetle) eat crop plants, suck their sap, render the crop inedible/unusable. * WEEDS compete with crop plants for nutrients, water, and sunlight * FUNGI grow on/digest/rot crop plants * BIRDS eat seeds & fruit * DEER eat crop plants

175. Chemistry Monday 4/11/2016 HOMEWORK: Ch 12 Assessment #’s 42abc, 44a, 49ab, 50b. Honors also do 40all, 41 all, 44bc, 47, 48, 50a. Answers in student vault, but pdf’s, not ppt’s. WARM-UP: Get out new sheet of notebook paper. Name, period, date in upper right hand corner. Title = “15-Week Warm-Up Packet” on top line. Skip a line. Write today’s date again. Copy and answer the following question: Write the equation for the reaction between baking soda and vinegar and name each chemical. STAMPS: [lab due – no bookwork to be stamped today] Done w/the warm-up? Start on the homework (the lab).

176. Environmental Science Monday 4/11/2016 Homework: 15.3 reading notes Warm-up: Get out new sheet of notebook paper. Name, period, date in upper right hand corner. Title = “15-Week Warm-Up Packet” on top line. Skip a line. Write today’s date again. Copy and answer the following question: What farming practices can keep agriculture from being sustainable? Stamps: 15.2 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

177. Environmental Science Monday 4/11/2016 Warm-up: What farming practices can keep agriculture from being sustainable? A: Drawing water from aquifers faster than they fill up worsens drought. Irrigation can cause salinization due to evaporation and salt accumulation. Pesticide target populations can develop resistance  pesticide becomes useless. Plowing disrupts topsoil  erosion Monoculture  soil depletion  desertification Pesticides may persist in air, water, soil.

178. Chemistry Tuesday 4/12/2016 HOMEWORK: (honors only) Ch 12 Assessment #’s 51-54 WARM-UP: How would you figure out how many molecules of oxygen are needed to react with 100 L of hydrogen gas to create water? STAMPS: Ch 12 Assessment #’s 42abc, 44a, 49ab, 50b. Honors also do 40all, 41 all, 44bc, 47, 48, 50a. Done w/the warm-up? Start on the homework (the lab).

179. How would you figure out how many molecules of oxygen are needed to react with 100 L of hydrogen gas to create water? * Use 22.4 L/mol to convert L hydrogen into mol hydrogen * Use the coefficients to convert mol hydrogen into mol oxygen * Use Avogadro’s # to convert mol oxygen into molecules oxygen

180. Environmental Science Tuesday 4/12/2016 Homework: 15.3 formative assessment Warm-up: What is the significance of consumption rate equaling recharge rate? Stamps: 15.3 reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

181. Environmental Science Tuesday 4/12/2016 Warm-up: What is the significance of consumption rate equaling recharge rate? A: Your consumption is sustainable. As long as a resource replenishes itself as quickly as you use it up, it will never run out. If you slaughter 100 cows a year from your herd but your herd gives birth to 100 calves/year, population is constant.

182. Chemistry Wednesday 4/13/2016 HOMEWORK: Study for ch 12 test tomorrow. Test will be 2/3 ch 12, but 1/3 old stuff (ch’s 3, 10, 11). Quiz Show might be a good idea in addition to the traditional methods (re-read book, re-do math problems from the book, study your notes, quiz each other). WARM-UP: How would you figure out how many iron atoms are needed to form 240 g of iron (III) oxide by rusting? STAMPS: (honors only) Ch 12 Assessment #’s 51-54. LAST DAY FOR CH 12 STAMPS! Done w/the warm-up? Start on the homework (the lab).

183. How would you figure out how many iron atoms are needed to form 240 grams of iron (III) oxide by rusting? * Use molar mass of iron oxide to convert g of iron oxide into mol iron oxide. * Use the coefficients to convert mol iron oxide into mol iron. * Use Avogadro’s # to convert mol iron into atoms of iron. 4Fe + 3O 2  2Fe 2 O 3

184. Environmental Science Wednesday 4/13/2016 Homework: Read “Genetically Modified Foods” on page 400- 401 and take notes. Warm-up: What bizarre thing do the Masai herdsmen in Africa do with their cattle? Stamps: 15.3 formative assessment Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

185. Environmental Science Wednesday 4/13/2016 Warm-up: What bizarre thing do the Masai herdsmen in Africa do with their cattle? A: They milk them, but they also slit their throats to harvest blood without killing them. https://www.youtube.com/watch?v=4E33sFwQ58U&nohtml5=Fals e

186. Chemistry Thursday 4/14/2016 HOMEWORK: Gather your ch 12 packet items together: all bookwork, worksheets, class notes, and anything else from 3/15-4/13 that isn’t a warm-up or a lab. ALSO: Do not include the “Hunting for the Elements” video notes. It will go in a future packet when we’ve seen the whole video. WARM-UP: Answer document = “Chem ch 12” Scratch Paper = “SCR 12” Get started on the test! Don’t wait for the bell! STAMPS: No more stamps for any ch 12 stuff. Done w/the warm-up? Start on the homework (the lab).

187. Chemistry Chapter 12 Screen Questions Answer the following on your scratch paper. 1. What steps would you take to determine liters of hydrogen gas produced if you know how many grams of zinc are being dropped in excess hydrochloric acid. 2. 128 grams of oxygen gas reacts with 64 grams of hydrogen gas. What happens and why? 3. Draw a labeled diagram of the stoichiometry road map. Explain what each part is and/or what it does. 4. Compare and contrast mass-mass stoichiometry calculations with true unit conversions.

188. Environmental Science Thursday 4/14/2016 Homework: Ch 14 Reviewing Key Terms, pg 373 Warm-up: Prepare to take “Food, Inc.” video notes. Stamps: “Genetically Modified Foods” reading notes Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

189. Chemistry Friday 4/15/2016 HOMEWORK: 14.1 reading notes, section assessment WARM-UP: Gather your ch 12 packet items together: All bookwork, worksheets, class notes, and anything else from 3/15-4/13 that isn’t a warm-up or a lab. ALSO: Do not include the “Hunting for the Elements” video notes. It will go in a future packet when we’ve seen the whole video. STAMPS: No more stamps for any ch 12 stuff. Done w/the warm-up? Start on the homework.

190. Chemistry Chapter 12 Packet List All non-lab, non-Wup work from 3/15-4/13, including: * 12.1, 12.2, and 12.3 (honors) notes, PrPr, Sxn Assmt * Ch 12 Assessment, selected problems (40’s, 50’s) * Stoichiometry Notes (lecture) * Stoichiometry Practice Worksheet * SP 9:4 work, if any (honors/bonus) * LEAPS lesson worksheet (period 4 only)

191. NO TALKING Headphones OK Chemistry: 14.1 notes, section assessment * Make sure no one but you can hear the music. * If it’s distracting, do yourself a favor and turn the music off.

192. Environmental Science Friday 4/15/2016 Homework: Ch 14 Reviewing Main Ideas, pg 373. Don’t just write a letter. Write your answer in the form of a complete sentence that conveys a complete science fact! Warm-up: Prepare to take “Food, Inc.” video notes, day 2. Stamps: Ch 14 Reviewing Key Terms Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

193. Chemistry Monday 4/18/2016 HOMEWORK: none – this is a dummy slide (video day) WARM-UP: none – video day STAMPS: 14.1 notes & section assessment Done w/the warm-up? Start on the homework.

194. Environmental Science Monday 4/18/2016 Homework: Ch 14 Review: “Short Answer” (#’s 19-23, pg 374) Warm-up: What does the corporation Monsanto have to do with soybean farmers? Stamps: Ch 14 Reviewing Main Ideas Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

195. Environmental Science Monday 4/18/2016 Warm-up: What does the corporation Monsanto have to do with soybean farmers? A: Monsanto makes an herbicide called “Round-Up”. Monsanto also created a Round-Up-resistant strain of soybeans, which they patented. In order to compete, soybean farmers must grow Monsanto’s GMO soybeans. If they save seeds from one of their crops rather than buying new seeds from Monsanto, Monsanto’s lawyers will bankrupt them with legal action. (According to “Food, Inc.”)

196. Chemistry Tuesday 4/19/2016 HOMEWORK: Read the procedure section on the Boyle’s Law Lab worksheet. WARM-UP: List three factors that affect gas pressure. For each, say whether a rise in that factor causes a rise or fall in pressure. STAMPS: none – no homework last night Done w/the warm-up? Start on the homework.

197. Environmental Science Tuesday 4/19/2016 Homework: Ch 15 Review: “Reviewing Key Terms” (#’s 1-10, pg 403) Warm-up: Compare and contrast commuting by car and by Metrorail. Stamps: Ch 14 Review: “Short Answer”, pg 374 (#’s 19-23) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

198. Environmental Science Tuesday 4/19/2016 Warm-up: Compare and contrast commuting by car and by Metrorail. A: Answers will vary, but you better mention that the Metrorail system is “mass transit”. Also, Metrorail = electrical*, but cars are powered by fossil fuels (mostly)

199. Chemistry Wednesday 4/20/2016 HOMEWORK: Crushing Can Lab due Thursday. Boyle’s Law Lab due Friday. DON’T COPY CONCLUSION QUESTIONS! Crushing Can needs rough & final drafts of procedure. WARM-UP: How much acetic acid, CH 3 COOH must react with baking soda to produce 3.5 grams of CO 2 ? NaHCO 3 + CH 3 COOH  CO 2 + H 2 O + NaCH 3 COO STAMPS: none today Done w/the warm-up? Start on the homework.

200. `

201. Environmental Science Wednesday 4/20/2016 Homework: Ch 15 Review: “Reviewing Main Ideas” (#’s 12-20, pg 403) Warm-up: What kinds of livestock are ruminants? What kinds aren’t? Stamps: Ch 15 Review: “Reviewing Key Terms”, pg 403 (#’s 1-10) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

202. Environmental Science Wednesday 4/20/2016 Warm-up: What kinds of livestock are ruminants? What kinds aren’t? A: Cattle, sheep, and goats are ruminants. The following are NOT ruminants: Pigs, horses, donkeys, chickens, llamas, camels, ostriches, fish

205. Chemistry Thursday 4/21/2016 HOMEWORK: Boyle’s Law Lab due tomorrow. DON’T COPY CONCLUSION QUESTION ANSWERS! WARM-UP: What happens to volume when pressure goes up? Why? STAMPS: none today. [Crushing Can Lab due instead.] Done w/the warm-up? Start on the homework.

206. Environmental Science Thursday 4/21/2016 Homework: Ch 15 Review: “Short Answer” (#’s 21-25, pg 404) Warm-up: Name a material found in ocean water that is not found in large amounts in fertile soil on land. Stamps: Ch 15 Review: “Reviewing Main Ideas” (#’s 12-20, pg 403) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

207. Environmental Science Thursday 4/21/2016 Warm-up: Name a material found in ocean water that is not found in large amounts in fertile soil on land. Most obvious answer: Salt Salt kills plants by dehydration (sucking water out of them). “Salinization” is when salts build up in soil, causing it to be less fertile, even sterile.

208. VERY SALTY WATERLess salty water Salt ions too big to fit through holes in cell membrane

209. VERY SALTY WATERLess salty water Water molecules small enough to fit through holes

210. VERY SALTY WATERLess salty water Each water molecule has a chance to wander to the other side More water molecules = more chances to lose water More water molecules moving  higher flow rate Water flows in both directions, but mostly from the more watery side to the less watery side. OSMOSIS!

212. Chemistry Friday 4/22/2016 HOMEWORK: Nothing new. Just get caught up on your labs. WARM-UP: Use kinetic molecular theory to explain why the soda cans imploded. STAMPS: none today. Boyle’s Law Lab due instead. Done w/the warm-up? Start on the homework.

213. Environmental Science Friday 4/22/2016 Homework: XCR: Review ch 14 w/Quiz Show (in the Media Center or at home) until you get at least 75% & prove it with a screenshot e-mailed to me or a picture on your phone. Warm-up: List and describe as many ways that people can ruin farmland as you can. Stamps: Ch 15 Review: “Short Answer” (#’s 21-25, pg 404) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

214. Environmental Science Friday 4/22/2016 Warm-up: List and describe as many ways that people can ruin farmland as you can. A: Irrigation can lead to salinization. Tilling/plowing breaks up roots, allowing wind to erode topsoil  dust bowl Persistent pesticides (DDT, etc.) can accumulate in soil  too toxic for people/other creatures

215. Chemistry Monday 4/25/2016 HOMEWORK: 14.2: read/notes pp 418-419; PrPr #’s 7 & 8. WARM-UP: Compare and contrast Boyle’s, Charles’s, and Gay-Lussac’s laws. STAMPS: none today. Done w/the warm-up? Start on the homework.

216. Environmental Science Monday 4/25/2016 Homework: XCR: Review ch 15 w/Quiz Show (in the Media Center or at home) until you get at least 75% & prove it with a screenshot e-mailed to me or a picture on your phone. Warm-up: How are antibiotics used in the genetic engineering process? Stamps: none, per se. (XCR for ch 14 quiz show evidence given as cpp) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

217. Environmental Science Monday 4/25/2016 Warm-up: How are antibiotics used in the genetic engineering process? A: A new gene is inserted into plant cells along with an antibiotic-resistance “marker” gene. The plant cells are given the antibiotic, which kills them if they didn’t get the new DNA correctly. Only the plant cells with the new DNA don’t die, and are grown into GMO plants.

218. Chemistry Tuesday 4/26/2016 HOMEWORK: none WARM-UP: What do P, V, n, and T stand for? In what units is each typically measured? STAMPS: 14.2: read/notes pp 418-419; PrPr #’s 7 & 8. Done w/the warm-up? Forge ahead on the worksheet or 14.2, whichever you feel bravest about.

220. Environmental Science Tuesday 4/26/2016 Homework: none (field trip tomorrow) Warm-up: Get the test rolling! Answer document title = “Enviro ch 14/15” Scratch paper title = “SCR 14/15” Don’t wait for the bell. Just start the test. Stamps: None. Just get started on the test! Done with the warm-up? Get started on the homework.

222. Environmental Science Chapter 14/15 Screen Questions 1. Give several reasons why wild plants are more protected against pests than cultivated plants are. 2. Why does soil conservation matter? How is it accomplished? 3. What is a GMO? Are you for or against GMO’s? Why? 4. How can salinization happen? What can we do to prevent it and what can we do to reverse it when it happens? 5. What are the advantages and disadvantages of biological pest control? 6. What are your thoughts about the spread of cities and the loss of wild areas?

223. Chemistry Thursday 4/28/2016 HOMEWORK: Finish notes & PrPr in 14.2 WARM-UP: What do “variable” and “unknown” mean in this unit? STAMPS: none (sub day yesterday) Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

224. Environmental Science Thursday 4/28/2016 Homework: 16.1 Formative Assessment Warm-up: Is coal a mineral? Why/why not? Stamps: none (sub day yesterday) Done with the warm-up? Get started on the homework. OUT OF SEAT during roll call = TARDY

225. Environmental Science Thursday 4/28/2016 Warm-up: Is coal a mineral? Why/why not? A: “Coal” comes in various levels of purity (% carbon), but, as such, has no chemical formula. Furthermore, being metamorphosed plant remains, it is still pretty organic. I would say “no”.

226. Chemistry Friday 4/29/2016 HOMEWORK: 14.2 Section Assessment WARM-UP: What does Mr. Barnes insist that you do before plugging numbers into a formula? STAMPS: 14.2 notes (hard), PrPr #’s 9-14 (math  soft) Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

227. “Snakes”The last work of M. C. Escher, 1969

228. Environmental Science Friday 4/29/2016 Homework: Gather your ch 14/15 bookwork, etc. Packet due Monday Warm-up: Is lead a metal? Why/why not? Stamps: 16.1 Formative Assessment Done with the warm-up? Work on the pink worksheet or read 16.2 OUT OF SEAT during roll call = TARDY

229. Environmental Science Friday 4/29/2016 Warm-up: Is lead a metal? Why/why not? A: Lead is soft; it is “malleable”. Lead can be stretched; it is “ductile”. Lead conducts electricity and heat well. Lead is a metal.

230. Chemistry Monday 5/2/2016 HOMEWORK: 14.3 reading notes (NOW!) & practice problems (as soon as possible) WARM-UP: What do the “1” & “2” subscripts indicate in the combined gas law? STAMPS: 14.2 section assessment (soft due date due to math) Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

231. Environmental Science Monday 5/2/2016 Homework: 16.2 reading notes Warm-up: What is a compound made of? Stamps: none (ch 14/15 packet due today) Done assembling your packet? Work on the pink worksheet or do the homework. OUT OF SEAT during roll call = TARDY

232. Environmental Science Ch 14/15 Packet List Due 5/2/16, delayed due date (oops) Anything from 3/12 through 4/25/16 For ch’s 14 and 15: Reading notes for all sections Formative assessments for all sections GMO reading notes Reviewing Key Terms Reviewing Main Ideas (in the form of complete sentences) Short Answer Video notes: Food, Inc (two or three days) Anything I missed?

233. Chemistry Tuesday 5/3/2016 HOMEWORK: 14.3 section assessment WARM-UP: What are some tricky things about solving a Gay- Lussac’s law problem? STAMPS: 14.3 reading notes (NOW!) & practice problems (as soon as possible) Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

234. Environmental Science Tuesday 5/3/2016 Homework: 16.2 formative assessment Warm-up: What is a compound made of? (yesterday’s warm-up – oops. Never went over it. Sorry) Stamps: 16.2 reading notes Done with the warm-up? Work on the pink worksheet or do the homework. Don’t just waste time chatting or playing with your #@%$ electronic device. Power comes not to the weak. OUT OF SEAT during roll call = TARDY

235. Environmental Science Tuesday 5/3/2016 Warm-up: What is a compound made of? A : A compound = two or more elements Chemically bonded to each other. EX: water = H 2 O = hydrogen & oxygen Carbon dioxide = CO 2 = carbon & oxygen Hydrogen sulfide = H 2 S = hydrogen & sulfur Glucose = C 6 H 12 O 6 = carbon, hydrogen, and oxygen

236. Chemistry Wednesday 5/4/2016 HOMEWORK: (Honors) 14.4 reading notes, practice problems. WARM-UP: Compare and contrast the combined gas law and the ideal gas law. STAMPS: 14.3 section assessment Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

239. Environmental Science Wednesday 5/4/2016 Homework: 16.3 reading notes Warm-up: What kinds of mining cause the most erosion? Stamps: 16.2 formative assessment Done with the warm-up? Work on the homework. OUT OF SEAT during roll call = TARDY

240. Environmental Science Wednesday 5/4/2016 Warm-up: What kinds of mining cause the most erosion? A: Open-pit mining and hydraulic mining cause the most erosion. (Subsurface and placer mining are much less disruptive to the earth’s surface.)

241. Chemistry Thursday 5/5/2016 HOMEWORK: (Honors) 14.4 section assessment WARM-UP: Compare and contrast variables and constants. STAMPS: (Honors) 14.4 reading notes, practice problems (#’s 31 & 32). Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

242. Environmental Science Thursday 5/5/2016 Homework: 16.3 formative assessment Warm-up: What unique hazards do coal mines pose? Stamps: 16.3 reading notes Done with the warm-up? Work on the homework. OUT OF SEAT during roll call = TARDY

243. Environmental Science Thursday 5/5/2016 Warm-up: What unique hazards do coal mines pose? A: Coal is flammable, so coal seams can be set on fire or can even burst into flames spontaneously. These fires may burn for centuries, creating toxic fumes ex: CO, CO 2, H 2 S Carbon dioxide is a greenhouse gas. Coal seam fires  global warming

244. Chemistry Friday 5/6/2016 HOMEWORK: Ch 14 Assessment #’s 46-49 & 51. HONORS: Also do #’s 55-58 if not already done. Assessment answers in student vault in pdf’s (red & white icons). WARM-UP: Use kinetic molecular theory to predict what should happen when you heat up the air in a hot air balloon. STAMPS: (Honors) 14.4 section assessment. Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

245. Environmental Science Friday 5/6/2016 Homework: Read & take notes on “Gold from Ghana”, pg 427. Warm-up: Under what conditions might a mining company have to forfeit a bond? Stamps: 16.3 formative assessment Done with the warm-up? Work on the homework. OUT OF SEAT during roll call = TARDY

246. Environmental Science Friday 5/6/2016 Warm-up: Under what conditions might a mining company have to forfeit a bond? A: If the mining company fails to properly reclaim a mining site when they’re done with it. (Replace dirt & topsoil, re-plant, clean up toxic waste, etc.)

247. Chemistry Monday 5/9/2016 HOMEWORK: Gather together all your work for ch 14. Tomorrow, you will be turning in two things: (1) The 15-Week Warm-Up Packet (2) The Ch 14 Work Packet WARM-UP: Get started on the test. Don’t wait for the bell. Answer doc title = Chem ch 14 Scratch paper title = SCR 14 I FORGOT MY STAMPS, so Ch 14 Assessment #’s 46-49 & 51, #’s 55-58 (honors), and any late ch 14 prpr/sxn assmt will get stamped tomorrow, just before you assemble your packets. Done w/the warm-up? Forge ahead on the worksheet or the homework. Don’t just waste time chatting.

248. Chemistry Chapter 14 Screen Questions 5/9/2016 1. Use kinetic molecular theory to explain what happens when: a.... you put a hairspray can in a fire. b.... heat up an already-filled hot air balloon. c.... an air mass near dark asphalt gets heated up. d.... more books are placed on an airtight piston assembly like the one you used in the lab. 2. Astronauts have gathered a sample of the atmosphere of the planet Urmagurd. It is 50% methane, 30% ammonia, and 20% xenon. The 2-liter sample is at STP. What can you tell me about the sample? 3. How much faster than nitrogen gas (N 2 ) should methane (CH 4 ) leak out of a high-pressure gas line?

249. Environmental Science Monday 5/9/2016 Homework: Chapter 16 Reviewing Key Terms, page 429 Warm-up: What toxic metal is sometimes used to separate gold from other material? How is this connected to dentistry? Stamps: “Gold from Ghana” reading notes Done with the warm-up? Work on the homework. OUT OF SEAT during roll call = TARDY

250. Environmental Science Monday 5/9/2016 Warm-up: What toxic metal is sometimes used to separate gold from other material? How is this connected to dentistry? A: Mercury is used in “amalgam” for tooth fillings.