1. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu 1. What is heavier, a pound of lead or a pound of feathers? 2. What happens to the matter of an astronaut who is weightless? 3. What tool could you develop to get the weight of an object on the space shuttle? Write in complete sentences. Section 2 Matter and Its Properties Chapter 1 Opener #2 - WED - August 22, 2012 Write in complete sentences.

2. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu 1. Describe in your own words what chemistry is. 2. Identify the branches of chemistry: 2a. chemistry of carbon containing compounds 2b. chemistry of living things 2c. a forensic scientists who was determines the makeup of a substance found in a crime scene. Write in complete sentences. Section 2 Matter and Its Properties Chapter 1 Opener #2 - Tuesday - January 8, 2013 Write in complete sentences. Give me completed student information sheets.

3. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Objectives and Assignments Tuesday, 1/8/13 *Discuss Safety rules and labs *Identify common tools used in chemistry labs and what they are used for. *Flashcards for each chapter - link on podcast page *Safety Rules QUIZ on Thursday. *Lab (change rooms) on FRIDAY. *Homework: (HW) - Study for QUIZ on safety lab rules AND identifying equipment/tools. *Start studying flashcards online and reading text from online textbook my.hrw.com, bryanthigh, student. My page: http://podcast.bryantschools.org/users/dvannhttp://podcast.bryantschools.org/users/dvann

4. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Opener #3 - Wednesday - 1/9/2013 Write in complete sentences. 1. Name at least 5 physical properties. 2. Name at least 3 chemical properties. 3. Contrast physical and chemical changes. 4. Give examples of physical changes. 5. Give examples of signs that a chemical change has taken place. CW: Notes 1.2 finished including activities/games CW: Notes 1.3 started CW/HW: pg. 25 #1-12 (#10-12 must be written out & count more points due TOMORROW.) HW: SAFETY QUIZ TOMORROW Lab is on Friday - switch rooms

5. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Opener #4 - Thursday - 1/10/2013 Opener: Watch Safety Lab and Take Safety Lab Quiz All Notes 1.2 need to be finished including activities/games today and started with Notes 1.3 started Turn in HW: pg. 25 #1-12 (#10-12 must be written out & count more points due TOMORROW.) Add #13 and turn in box today before leaving. CW/HW: Ch.1 Review sheet due on Monday. Lab tomorrow - Friday - switch rooms

6. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Objectives Distinguish between the physical properties and chemical properties of matter. Classify changes of matter as physical or chemical. Explain the gas, liquid, and solid states in terms of particles. Section 2 Matter and Its Properties Chapter 1

7. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Objectives, continued Explain how the law of conservation of energy applies to changes of matter. Distinguish between a mixture and a pure substance. Section 2 Matter and Its Properties Chapter 1

8. End Show © Copyright Pearson Prentice Hall 8 Slide of 26 Properties of Matter Bamboo has properties that make it a good choice for use in chopsticks. It has no noticeable odor or taste. It is hard, yet easy to split, and it is heat resistant. You will learn how properties can be used to classify and identify matter. 1.2

9. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Mass is a measure of the amount of matter. Matter is anything that has mass and takes up space. Volume is the amount of three dimensional space an object occupies. Matter Section 2 Matter and Its Properties Chapter 1

10. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Matter Chapter 1 http://my.hrw.com/sh/hc6_003036809x/studen t/ch01/sec02/vc01/hc601_02_v01fs.htm

11. End Show Slide of 25 © Copyright Pearson Prentice Hall 11 Connecting to Your World Elements and Compounds Take two pounds of sugar, two cups of boiling water, and one quarter teaspoon of cream of tartar. Add food coloring and you have the sticky, sweet concoction known as cotton candy. You will learn how substances are classified as elements or compounds. 1.2

12. End Show © Copyright Pearson Prentice Hall 12 Elements and Compounds > Slide of 25 Distinguishing Elements and Compounds How are atoms, elements and compounds different? 1.2

13. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Basic Building Blocks of Matter An atom is the smallest unit of an element that maintains the chemical identity of that element. Section 2 Matter and Its Properties Chapter 1

14. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Parts of the Atom Chapter 1 Visual Concepts

15. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Basic Building Blocks of Matter An element is a pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom. Section 2 Matter and Its Properties Chapter 1

16. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Element Chapter 1 http://my.hrw.com/sh/hc6_003036809x/st udent/ch01/sec02/vc03/hc601_02_v03fs. htm

17. End Show © Copyright Pearson Prentice Hall 17 Slide of 25 Elements and Compounds > Distinguishing Elements and Compounds A compound is a substance that contains two or more elements chemically combined in a fixed proportion. Compounds can be broken down into simpler substances by chemical means, but elements cannot. 1.2

18. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Compounds Chapter 1 http://my.hrw.com/sh/hc6_003036809x /student/ch01/sec02/vc04/hc601_02_v0 4fs.htm

19. End Show Slide of 25 © Copyright Pearson Prentice Hall 19 Elements and Compounds > Distinguishing Elements and Compounds Properties of Compounds In general, the properties of compounds are quite different from those of their component elements. When the elements sodium and chlorine combine chemically to form sodium chloride, there is a change in composition and a change in properties. 1.2

20. End Show Slide of 25 © Copyright Pearson Prentice Hall 20 > Elements and Compounds Distinguishing Elements and Compounds Chlorine is used to kill harmful organisms in swimming pools. 1.2

21. End Show Slide of 25 © Copyright Pearson Prentice Hall 21 > Elements and Compounds Distinguishing Elements and Compounds Sodium is stored under oil to keep it from reacting with oxygen or water vapor in the air. Sodium vapor produces the light in some street lamps. 1.2

22. End Show Slide of 25 © Copyright Pearson Prentice Hall 22 > Elements and Compounds Distinguishing Elements and Compounds Sodium Chloride (commonly known as table salt) is used to season or preserve food. 1.2

23. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Molecule is the smallest unit of an element or compound that retains all of the properties of that element or compound. Chapter 1 Examples:

24. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Molecules Chapter 1 http://my.hrw.com/sh/hc6_003036809 x/student/ch01/sec02/vc05/hc601_02_ v05fs.htm

25. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Basic Building Blocks of Matter, continued Section 2 Matter and Its Properties Chapter 1

26. End Show © Copyright Pearson Prentice Hall 26 Elements and Compounds > Slide of 25 Symbols and Formulas What do chemists use to represent elements and compounds? 1.2

27. End Show © Copyright Pearson Prentice Hall 27 Slide of 25 Elements and Compounds > Symbols and Formulas Chemists use chemical symbols to represent elements, and chemical formulas to represent compounds. These chemical symbols were used in earlier centuries. 1.2

28. End Show Slide of 25 © Copyright Pearson Prentice Hall 28 > Elements and Compounds Symbols and Formulas Each element is represented by a one or two- letter chemical symbol. 1.2

29. End Show © Copyright Pearson Prentice Hall Slide of 25 Section Quiz -or- Continue to: Launch: Assess students’ understanding of the concepts in Section 1.2 A Section Quiz. PH2.3 Text

30. © Copyright Pearson Prentice Hall Slide of 25 End Show 1.2 A Section Quiz 1.Passing an electric current through a certain substance produces oxygen and sulfur. This substance cannot be a(n) a.compound. b.mixture. c.element. d.solution.

31. © Copyright Pearson Prentice Hall Slide of 25 End Show 1.2 A Section Quiz 2.Which of the following is a mixture? a.sodium chloride b.carbon dioxide c.sucrose d.air

32. © Copyright Pearson Prentice Hall Slide of 25 End Show 1.2 A Section Quiz. 3.The symbol for the element potassium is a.K. b.Po. c.P. d.Pt.

33. © Copyright Pearson Prentice Hall Slide of 25 End Show FLASHCARDS ONLINE for Section 1.1, 1.2A Go to the following webpage and study the flashcards for the branches of chemistry, pure and applied science, and basic terms so far. Click here for Flashcards Chemistry 1.1 - Study these at home or with my computers outside of class time. We are doing this one in class to learn how it works this time.Flashcards Chemistry 1.1 Study & read notes at home; study flashcards. Spell is a way of learning to spell terms and hearing and just getting familiar with terms with audio and typing. click on LEARN to start practicing term with definition, clue, or application of term. Type in the answer. Note you can override if you were correct but missed due to typing error, small spelling issue, leaving out ending such as analytical when answer was type of chemistry and was put in as analytical chemistry where “chemistry” might have been assumed from question. See me if not sure. This is to help you learn. TEST is a generated test that will give you a chance to see how well you would do in a different format. GAMES will be done sometimes in class as a competition or from home.

34. End Show Slide of 26 © Copyright Pearson Prentice Hall 34 Properties of Matter > Identifying Substances A physical property is a quality or condition of a substance that can be observed or measured without changing the substance’s composition. Hardness, color, conductivity, and malleability are examples of physical properties. 1.2 Section 1.2 B Properties of Matter Notes

35. End Show Slide of 26 © Copyright Pearson Prentice Hall 35 Properties of Matter > Identifying Substances 1.2

36. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Physical Properties and Physical Changes A physical property is a characteristic that can be observed or measured without changing the identity of the substance. melting point and boiling point A physical change is a change in a substance that does not involve a change in the identity of the substance. grinding, cutting, melting, and boiling Section 2 Matter and Its Properties Chapter 1

37. End Show Slide of 26 © Copyright Pearson Prentice Hall 37 Properties of Matter > Physical Changes During a physical change, some properties of a material change, but the composition of the material does not change. As gallium melts in a person’s hand, the shape of the sample changes, but the composition of the material does not change. 1.2

38. End Show Slide of 26 © Copyright Pearson Prentice Hall 38 Properties of Matter > Physical Changes Physical changes can be classified as reversible or irreversible. All physical changes that involve a change from one state to another are reversible example solid (ice) to water can be reversed from liquid back to solid by freezing. Cutting hair, filing nails, and cracking an egg are examples of irreversible physical changes. 1.2

39. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Properties and Changes in Matter Extensive properties depend on the amount of matter that is present. volume mass the amount of energy in a substance. Section 2 Matter and Its Properties Chapter 1

40. End Show Slide of 26 © Copyright Pearson Prentice Hall 40 Properties of Matter > Describing Matter Intensive Properties An intensive property is a property that depends on the type of matter in a sample, not the amount of matter. The hardness of a bowling ball is an example of an intensive property. 1.2

41. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Properties and Changes in Matter Intensive properties do not depend on the amount of matter present. melting point boiling point density ability to conduct electricity ability to transfer energy as heat Section 2 Matter and Its Properties Chapter 1

42. End Show © Copyright Pearson Prentice Hall 42 Properties of Matter > Slide of 26 Identifying Substances Why do all samples of a substance have the same intensive properties? 1.2

43. End Show Slide of 26 © Copyright Pearson Prentice Hall 43 Properties of Matter > Identifying Substances Matter that has a uniform and definite composition is called a pure substance. These kettles are mainly copper. Copper is an example of a pure substance. 1.2

44. End Show Slide of 26 © Copyright Pearson Prentice Hall 44 Properties of Matter > Identifying Substances This sculpture of a falcon is made of gold. Gold is an example of a pure substance. 1.2

45. End Show Slide of 26 © Copyright Pearson Prentice Hall 45 Properties of Matter > Identifying Substances Every sample of a given pure substance has identical intensive properties because every sample has the same composition. 1.2

46. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Properties of Matter Section 2 Matter and Its Properties Chapter 1

47. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Comparing Extensive and Intensive Properties Chapter 1 http://my.hrw.com/sh/hc6_003036809x/s tudent/ch01/sec02/vc06/hc601_02_v06fs.htm

48. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu COMPUTER ACTIVITY The following activity is to understand concepts of intensive vs. extensive properties. The following will be a SORT activity. Classify each item as either extensive or intensive property examples. Record your score in your notes. You should play again at home for practice. CLICK BELOW & PLAY: 44 questions - challenging level INTENSIVE VS. EXTENSIVE ONLINE ACTIVITY RECORD YOUR SCORES. THE FASTER THE BETTER - LOW SCORE IS BEST.

49. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Physical Properties and Physical Changes, continued A change of state is a physical change of a substance from one state to another. Section 2 Matter and Its Properties Chapter 1

50. End Show © Copyright Pearson Prentice Hall 50 Slide of 26 Properties of Matter > States of Matter Four states of matter are solid, liquid, gas, and plasma. A 5th state is Bose-Einstein Condensate (BSE) which we will not study at this time. 1.2 QUICK REFRESHER FROM PHYSICAL SCIENCE

51. End Show Slide of 26 © Copyright Pearson Prentice Hall 51 Properties of Matter > States of Matter Solids A solid is a form of matter that has a definite shape and volume. 1.2

52. End Show Slide of 26 © Copyright Pearson Prentice Hall 52 Properties of Matter > States of Matter Liquid A liquid is a form of matter that has an indefinite shape, flows, yet has a fixed volume. 1.2

53. End Show Slide of 26 © Copyright Pearson Prentice Hall 53 Properties of Matter > States of Matter Gases A gas is a form of matter that takes both the shape and volume of its container. 1.2

54. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Liquid Chapter 1

55. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Gas Chapter 1 REMEMBER A GAS IS ALSO A FLUID BECAUSE IT TAKES THE SHAPE OF ITS CONTAINER.

56. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Plasma Chapter 1

57. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Plasma Chapter 1 CLICK HERE TO LEARN MORE ABOUT PLASMA

58. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Water in Three States Chapter 1 (s) (l) (aq) - mixed with liquid water (g)

59. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu STATES OF MATTER - RECAP states of matter—solid state, liquid state, gas state, plasma In the solid state, matter has definite volume and definite shape. In the liquid state, matter has a definite volume but an indefinite shape. Section 2 Matter and Its Properties Chapter 1 In the gas state, matter has neither definite volume nor definite shape. Plasma is a high-temperature physical state of matter in which atoms lose most of their electrons, particles that make up atoms.

60. 3.3 Phase Changes COMPUTER ACTIVITY LINK Click on the following link and complete the activity. Record your results in your notes in the area provided. CLICK THIS LINK... Be sure you are in “PLAY” mode. http://www.neok12.com/diagram/States-of-Matter-01.htm Record your answers on the diagram in your notes. You may choose to assign numbers to each word and place in your diagram in your notes.

61. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Video for Fun with States of Matter concepts

62. © Copyright Pearson Prentice Hall Slide of 26 End Show 4.Which of the following would be described as an extensive property of matter? a.temperature b.color c.mass d.hardness 1.2 B Section Quiz.

63. © Copyright Pearson Prentice Hall Slide of 26 End Show 1.2 B Section Quiz. 5.Which properties can be observed without changing the composition of a substance? a.all properties of a substance b.intensive properties c.chemical properties d.physical properties

64. © Copyright Pearson Prentice Hall Slide of 26 End Show 1.2 B Section Quiz. 6.Match the states of matter with the following descriptions: (1) takes the volume and shape of its container (2) has a definite shape and volume (3) has a definite volume but an indefinite shape a.(1) liquid, (2) solid and (3) gas b.(1) gas, (2) solid, and (3) liquid c.(1) gas, (2) liquid, and (3) solid

65. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Notes 1.2 C Chemical Properties and Chemical Changes A chemical property relates to a substance’s ability to undergo changes that transform it into different substances. Examples: reactivity, flammability, corrosive or non-corrosive, nonreactive, ability to burn. Section 2 Matter and Its Properties Chapter 1

66. End Show Slide of 19 © Copyright Pearson Prentice Hall 66 Chemical Reactions > Chemical Changes The ability of a substance to undergo a specific chemical change is called a chemical property. Chemical properties can be used to identify a substance. But chemical properties can be observed only when a substance undergoes a chemical change. 1.2

67. End Show Slide of 25 © Copyright Pearson Prentice Hall 67 > Elements and Compounds Distinguishing Elements and Compounds Breaking Down Compounds A chemical change is a change that produces matter with a different composition than the original matter. When table sugar is heated, it goes through a series of chemical changes. 1.2 A change in which one or more substances are converted into different substances is called a chemical change or chemical reaction.

68. End Show Slide of 25 © Copyright Pearson Prentice Hall 68 > Elements and Compounds Distinguishing Elements and Compounds The final products of these chemical changes are solid carbon and water vapor. The following diagram summarizes the process. 1.2

69. End Show © Copyright Pearson Prentice Hall 69 Slide of 19 Chemical Reactions Iron is abundant, easy to shape when heated, and relatively strong, especially when mixed with carbon in steel. Over time, objects made of iron will rust if they are left exposed to air. You will should be able to recognize chemical changes and to distinguish them from physical changes from your physical science class in 9th grade. 1.2

70. End Show © Copyright Pearson Prentice Hall 70 Chemical Reactions > Slide of 19 1.2 Chemical Changes What always happens during a chemical change?

71. End Show © Copyright Pearson Prentice Hall 71 Slide of 19 Chemical Reactions > Chemical Changes During a chemical change, the composition of matter always changes. Recall that during a physical change, the composition of matter never changes. 1.2

72. End Show Slide of 19 © Copyright Pearson Prentice Hall 72 Chemical Reactions > Chemical Changes A magnet separates iron from sulfur. This is an example of a physical change. 1.2

73. End Show Slide of 19 © Copyright Pearson Prentice Hall 73 Chemical Reactions > Chemical Changes A mixture of iron and sulfur is heated. The iron and sulfur react and form iron sulfide. This is an example of a chemical change. 1.2

74. End Show Slide of 19 © Copyright Pearson Prentice Hall 74 Chemical Reactions > Chemical Changes A chemical change is also called a chemical reaction. One or more substances change into one or more new substances during a chemical reaction. A substance present at the start of the reaction is a reactant. A substance produced in the reaction is a product. 1.2

75. End Show © Copyright Pearson Prentice Hall 75 Chemical Reactions > Slide of 19 Recognizing Chemical Changes 1.2 Recognizing Chemical Changes What are possible clues that a chemical change has taken place?

76. End Show © Copyright Pearson Prentice Hall 76 Slide of 19 Chemical Reactions > Recognizing Chemical Changes Possible clues to chemical change include: a transfer of energy a change in color the production of a gas the formation of a precipitate. 1.2

77. End Show Slide of 19 © Copyright Pearson Prentice Hall 77 Chemical Reactions > Chemical Changes A precipitate is a solid that forms and settles out of a liquid mixture. Clues to chemical changes have practical applications. 1.2

78. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Chemical Reaction Chapter 1

79. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chemical Properties and Chemical Changes, continued The reactants are the substances that react in a chemical change. The products are the substances that are formed by the chemical change. Carbon plus oxygen yields (or forms) carbon dioxide. Section 2 Matter and Its Properties Chapter 1 reactants product carbon + oxygen carbon dioxide

80. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Evidence of a Chemical Change Section 2 Matter and Its Properties Chapter 1

81. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Electrolysis of Water Section 2 Matter and Its Properties Chapter 1

82. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Comparison of Physical and Chemical Properties Section 2 Matter and Its Properties Chapter 1

83. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Comparing Physical and Chemical Properties Chapter 1 http://my.hrw.com/sh/hc6_003036809x/stud ent/ch01/sec02/vc07/hc601_02_v07fs.htm

84. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Comparing Chemical and Physical Changes Chapter 1 http://my.hrw.com/sh/hc6_003036809x/st udent/ch01/sec02/vc08/hc601_02_v08fs.h tm

85. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Energy and Changes in Matter Energy is always involved when physical or chemical changes occur. Energy can be in various forms. heat light Energy can be absorbed or released in a change, it is not destroyed or created. Law of conservation of energy Section 2 Matter and Its Properties Chapter 1

86. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Energy and Chemical Reactions Chapter 1 http://my.hrw.com/sh/hc6_0030368 09x/student/ch01/sec02/vc14/hc60 1_02_v14fs.htm

87. 87 End Show Slide of 19 © Copyright Pearson Prentice Hall Chemical Reactions > GAME ACTIVITY To be sure you remember the differences between physical and chemical properties and physical and chemical changes, play the following sorting game. See me if you still are having trouble distinguishing between these 4 terms. Also, be sure to understand the differences between intensive & extensive physical properties as well. CLICK BELOW on either of the 2 game activities. (You must be in “play mode” with slideshow. This is an interactive flash video with questions quiz on chemical or physical changes... http://vital.cs.ohiou.edu/steamwebsite/downloads/ChangeLab.swf This is practice with sorting examples into either physical properties, chemical properties, physical change, or chemical change categories. This is excellent practice for the test with this concept. You will click on proceed to enter the activity itself. Please do not change anything on the list. http://classtools.net/widgets/dustbin_2/GnLsN.htm 87 physical & chemical properties & changes

88. End Show © Copyright Pearson Prentice Hall 88 Elements and Compounds > Slide of 25 Distinguishing Substances and Mixtures How can substances and mixtures be distinguished?

89. End Show © Copyright Pearson Prentice Hall 89 Slide of 25 Elements and Compounds > Distinguishing Substances and Mixtures 1.2 If the composition of a material is fixed, the material is a pure substance: an element or compound. If the composition of a material may vary, the material is a mixture either homogenous or heterogenous.

90. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Visual Concepts Click below to watch the Visual Concept. Visual Concept Classification Scheme for Matter Chapter 1 http://my.hrw.com/sh/hc6_0030368 09x/student/ch01/sec02/vc16/hc60 1_02_v16fs.htm

91. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Classification of Matter - Videoclip summary Section 2 Matter and Its Properties Chapter 1

92. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Classifying Matter Section 2 Matter and Its Properties Chapter 1

93. End Show © Copyright Pearson Prentice Hall 93 Slide of 25 Elements and Compounds > Distinguishing Substances and Mixtures This flowchart summarizes the process for classifying matter. 1.2

94. End Show © Copyright Pearson Prentice Hall Slide of 25 CONCEPTUAL PROBLEM 2.2

95. End Show © Copyright Pearson Prentice Hall Slide of 25

96. End Show © Copyright Pearson Prentice Hall Slide of 25

97. © Copyright Pearson Prentice Hall Slide of 25 End Show Practice Problems for Conceptual Problem 2.2 Problem Solving 2.19 Solve Problem 19 with the help of an interactive guided tutorial Click here YOU CAN CHECK YOUR WORK BY CLICKING ON LINK.

98. End Show © Copyright Pearson Prentice Hall 98 Slide of 26 Mixtures Panning is one way to separate gold from a mixture of gold and materials such as sand or gravel. A pan containing the mixture is place underwater and shaken vigorously from left to right. You will learn how to classify and separate mixtures. 1.2

99. End Show © Copyright Pearson Prentice Hall 99 Mixtures Slide of 21 > Classifying Mixtures How can mixtures be classified? 1.2

100. End Show Slide of 21 © Copyright Pearson Prentice Hall 100 > Mixtures Classifying Mixtures A mixture is a blend of two or more kinds of matter, each of which retains its own identity and properties. mixed together physically can usually be separated A salad bar provides a range of items. Customers choose how much of each item to use in their salads. Each salad has a different composition. 1.2

101. End Show © Copyright Pearson Prentice Hall 101 > Slide of 21 Mixtures Classifying Mixtures Based on the distribution of their components, mixtures can be classified as heterogeneous mixtures or as homogeneous mixtures. 1.2

102. End Show Slide of 21 © Copyright Pearson Prentice Hall 102 > Mixtures Classifying Mixtures Homogeneous Mixtures A mixture in which the composition is uniform throughout is a homogeneous mixture. Another name for a homogeneous mixture is a solution. example: (salt-water solution) 1.2

103. End Show Slide of 21 © Copyright Pearson Prentice Hall 103 > Mixtures Classifying Mixtures Heterogeneous Mixtures A mixture in which the composition is not uniform throughout is a heterogeneous mixture. example (clay-water mixture) 1.2

104. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Matter and Its Properties Chapter 1 Examples of Mixtures

105. End Show © Copyright Pearson Prentice Hall 105 Mixtures Slide of 21 > 1.2 Separating Mixtures How can mixtures be separated?

106. End Show © Copyright Pearson Prentice Hall 106 > Slide of 21 Mixtures Separating Mixtures Differences in physical properties can be used to separate mixtures. 1.2

107. End Show Slide of 21 © Copyright Pearson Prentice Hall 107 > Mixtures Separating Mixtures Filtration The process that separates a solid from the liquid in a heterogeneous mixture is called filtration. A colander is used to separate pasta from the water in which it was cooked. This process is a type of filtration. 1.2

108. End Show Slide of 21 © Copyright Pearson Prentice Hall 108 > Mixtures Separating Mixtures Distillation During a distillation, a liquid is boiled to produce a vapor that is then condensed into a liquid. 1.2

109. End Show © Copyright Pearson Prentice Hall Slide of 21

110. End Show © Copyright Pearson Prentice Hall Slide of 21

111. End Show © Copyright Pearson Prentice Hall Slide of 21

112. © Copyright Pearson Prentice Hall Slide of 21 End Show Practice Problems for Conceptual Problem 2.2 Problem Solving 2.10 Solve Problem 10 with the help of an interactive guided tutorial. CLICK HERE

113. End Show © Copyright Pearson Prentice Hall Slide of 21 Section Quiz -or- Continue to: Launch: Assess students’ understanding of the concepts in Section 1.2 C Section Quiz. 2.2.

114. © Copyright Pearson Prentice Hall Slide of 21 End Show 1.2 C Section Quiz. 7.Which of the following phrases describes a mixture? a.composition varies b.composition may vary c.components cannot be separated

115. © Copyright Pearson Prentice Hall Slide of 21 End Show 1.2 C Section Quiz. 8.Which of the following is a homogeneous mixture? a.vinegar(made up of acetic acid and water) b.iron filings in sand c.chicken noodle soup d.muddy water

116. © Copyright Pearson Prentice Hall Slide of 21 End Show 1.2 C Section Quiz. 9.Which technique is used to separate homogeneous mixtures? a.filtration b.distillation c.magnetism d.dissolving

117. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Types of Mixtures Section 2 Matter and Its Properties Chapter 1

118. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Pure Substances A pure substance has a fixed composition. Pure substances are either compounds or elements. A pure substance differs from a mixture in the following ways: Every sample of a given pure substance has exactly the same characteristic properties. Every sample of a given pure substance has exactly the same composition. Water is always 11.2% hydrogen and 88.8% oxygen by mass. Section 2 Matter and Its Properties Chapter 1

119. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Laboratory Chemicals and Purity Section 2 Matter and Its Properties Chapter 1

120. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Solutes, Solvents, and Solutions CLICK BELOW FOR VISUAL CONCEPT. Click here for Visual Concept

121. © Copyright Pearson Prentice Hall Slide of 27 End Show online SELF-CHECK QUIZ FOR SECT. 1.2 TAKE THE FOLLOWING QUIZ. Record your answers. Ask questions for any answer that you do not understand. CLICK BELOW TO TAKE THE QUIZ. YOU MUST BE IN THE PLAY MODE OF THE SLIDE SHOW. QUIZ SECTION 1.2 MODERN CHEMISTRY HOLT RECORD YOUR 10 ANSWERS IN NOTES.

122. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu HOMEWORK - Standardized Test Prep (STP) PG. 25 #1-12. FOR #10-12, ANSWERS SHOULD BE WRITTEN OUT. #1-9 MAY HAVE LETTER OF ANSWER. SAFETY LAB QUIZ on THURSDAY... LAB FRIDAY QUIZ on lab equipment on MONDAY. Read ch. 1-2 and complete the textbook work above. Homework due Friday.

123. © Copyright Pearson Prentice Hall Slide of 27 End Show FLASHCARDS CH. 1 CLICK BELOW TO STUDY AND PRACTICE CHEMISTRY CH. 1 TERMS SET #2. THESE ARE IN ADDITION TO 1.1 FLASHCARDS. CLICK HERE FOR CH. 1 FLASHCARDSCH. 1 FLASHCARDS

124. © Copyright Pearson Prentice Hall Slide of 27 End Show VIDEOS FOR ADDITIONAL INSTRUCTION Additional Videos for Section 1.2 - (6 videoclips) - Matter & Its Properties Physical Matter Properties - Chemical Matter Properties (2:58)Physical Matter Properties - Chemical Matter Properties Atomic Structure (2:16)Atomic Structure Elements and Compounds (2:29)Elements and Compounds States of Matter (2:37)States of Matter Changes in Matter (1:15)Changes in Matter Mixtures (2:37)Mixtures