3. CHEM STRY

5. Contestants must have paper and pencil with them to give questions to the Final Jeopardy answer. Contestants may want to have a calculator with them as an aid in providing questions to some answers.

6. Significant Digits Chemical Measure Inquiry Process Organize & Interpret Evaluating Inquiry Tech Talk $ 200 $ 200$200 $ 200 $ 200 $400 $ 400$400 $ 400$400 $600 $ 600$600 $ 600 $ 600 $ 600 $800 $ 800$800 $ 800 $ 800 $ 800 $ 1000$1000 $ 1000 $ 1000 $ 1000 $ 1000

7. Significant or Not Measuring Devices Scientific Notation Dimensional Analysis Observations Inferences $ 400 $ 400 $ 400 $ 400 $ 400 $ 400 $ 800 $ 800 $ 800 $ 800 $ 800 $ 800 $ 1200 $ 1200 $ 1200 $ 1200 $ 1200 $ 1200 $ 1600 $ 1600 $ 1600 $ 1600 $ 1600 $ 1600 $ 2000 $ 2000 $ 2000 $ 2000 $ 2000 $ 2000

8. Final Jeopardy Safety

9. Final Jeopardy What is NEVER? (You never bring snacks into the lab area.) This is the only time that you are allowed to bring snacks into the lab area.

10. $200 What are digital measuring devices? These measuring devices typically show numbers on a screen.

11. $400 What are analogue measuring devices? With these students have to figure out where the measurement should be.

12. $600 What are uncertain digits? This is the digit that students estimate or the last digit in any measured number.

13. $800 What are significant digits? These are BOTH the digits in a measurement of which students can be certain AND the digits that are uncertain.

14. $1000 What are significant zeroes? There is a one-part rule and a two-part rule for determining these.

15. $200 What is a measurement unit? Even if you have all the certain and estimated digits right, measurements are not complete without these.

16. $400 What is an analogue measuring device? This is the kind of device with which you must ALWAYS estimate the last digit.

17. $600 What is “more precise?” When a measuring device can be used to determine more digits than another measurement device, it is said to be this.

18. $800 What is the 10 ths place? A measured number that has been recorded to the 100 ths place is assumed to have been measured on an analogue device that has markings to this increment.

19. $1000 What is precise but not accurate? Repeated measurements that are close to each other but NOT close to the actual measurement are this but NOT that.

20. $200 What is “the dependent variable?” This is the variable that changes in response to changes in the independent variable.

21. This is an attempt to explain why observed behavior occurs by attempting to explain what underlying phenomena caused the behavior. $400 What is a “scientific model?”

22. $600 What is “tentative?” All explanations in science must be based on physical evidence, sound reasoning, and they are always this.

23. $800 What is a “cause and effect” (or “if/then”) relationship? Scientific investigations are designed to answer a question about this relationship between 2 variables.

24. $1000 What is a “controlled scientific investigation.” This is the kind of scientific investigation in which “…one variable at a time is deliberately changed and the effect on another variable is observed while holding all other variables constant…”

25. $200 What is a table? Charts are OK for organizing data in a lab notebook, but THESE are required for a formal write ‑ up.

26. $400 What is the y or vertical axis? Graphs should have dependent variable data recorded here.

27. $600 What are a description of the variable and the unit of measurement? In addition to the numbers and incremental markings, a graph is not complete without these 2 things on each axis.

28. $800 What is a straight line with an upward (or positive) slope? Variables in which the measured data are in direct proportion will create this kind of graph.

29. $1000 This is the formula implied by a “best fit” line on a graph that is a straight line with an upward slope starting at zero. What is independent variable over dependent variable equal a constant?

30. $200 What is an “if-then” or “cause and effect” statement? This is the form in which an hypothesis should typically be written.

31. $400 What is a scientific theory? This is what is used by scientists to explain why things happen.

32. $600 What are tables, charts, and graphs? These are tools used by scientists for reviewing the data they have gathered.

33. $800 What is the “hypothesis is supported?” This is what happens when the data in an experiment is consistent with a prediction.

34. $1000 What is a model that describes what the scientist believes is the cause of the phenomenon to be tested? Hypotheses should be based on this.

35. $200 What are technological designs or products? These are the applications of scientific knowledge to meet specific needs of humans.

36. $400 What are engineering and technology? Unlike science, these areas of endeavor are primarily interested in making things work.

37. $600 What is science? This endeavor is interested in developing defendable arguments to explain how and why the universe works as it does.

38. $800 What is a technological challenge? Science must sometimes overcome this to further its goal of explaining how the universe works.

39. $1000 What is when the risks exceed the benefits? This is when scientists must choose NOT to overcome a technological challenge in order to pursue an experiment.

40. $400 What are non-zero digits? In measurements, these digits are always significant.

41. $800 What is, it’s between 2 significant digits? This is the reason why the underlined zero in the following number is significant: 20.01.

42. $1200 What is it follows both a non-zero digit AND a decimal place? This is the reason why the underlined zero is significant: 20.0.

43. $1600 What is 5? This is the number of significant digits in this measurement: 0.0042010 g Fe

44. $2000 What are 3 significant digits? The number of digits needed in the final answer of this problem:

45. $400 What is a digital measuring device? The kind of measuring device that might have a screen that displays a number such as this:. 122.45 g

46. $800 What are 5 significant digits? The number of significant digits if a number such as this were to displayed on a measuring device screen: 120.40 g

47. $1200 What is there are no insignificant digits? The insignificant digits if this number were to be displayed on the screen of a measuring device:. 122.45 g

48. $1600 What is 39.3 mL? Or any amount between 39.2 to 39.4 mL, but the measurement MUST be precise to the 10 ths place. This is the amount of liquid in the graduated cylinder illustrated here. 40 mL 30 mL

49. This is the amount of liquid dispensed from the buret illustrated here. $2000 What is 1.26 mL? Or any amount between 1.23 to 1.29 mL but the measurement MUST be precise to the 100 ths place. 32 mL 33 mL 32 mL 33 mL Initial Measurement Final Measurement

50. $400 What is 1.25  10 0 mL? This is how 1.25 mL would be written in scientific notation.

51. $800 What is 1.253  10 3 g of iron? This is how 1253 grams of iron would be written in scientific notation.

52. $1200 What are 4 significant digits? The number of significant digits in 1.257  10 4  C.

53. $1600 What is 0.000 993 mL H 2 O? This is how 9.93  10  4 mL H 2 O would appear when it is NOT in scientific notation.

54. $2000 What is 1.0  10  1 or 0.1? This is the product when 1.0  10  4 is multiplied by 1.0  10 3.

55. $400 What is 18.0153 grams of water is equal to 1 mole of water? - or - What is18.0153 g H 2 O = 1 mol H 2 O? This is the equality statement from which the conversion unit is constructed.

56. $800 What is counting numbers are NOT used in determining significant digits final answer? This is how counting numbers are used in dimensional analysis when determining the number of significant digits in a final answer.

57. $1200 What is to put the starting amount over one in a fraction? This what you do with the starting amount in most conversion problems in Mr. Tedder’s class.

58. $1600 What is temperature? Degrees Celsius, degrees Fahrenheit, and Kelvin units are all part of this dimension.

59. If there are 2 or more calculated or measured numbers being multiplied or divided, you should choose this to determine the number of digits in the final answer. $2000 What is the number with the fewest digits?

60. $400 What is “quantitative?” Measurements are this kind of observation.

61. $800 What are “units of measurement?” Numbers from measurements by themselves tell you nothing without these.

62. $1200 What is mass? Because the pull of gravity is greater at Myrtle Beach than it is in Spartanburg, chemists don’t use weight, they use this.

63. $1600 What is volume? This is a dimension of measurement AND the amount of space taken up by an object.

64. This is an intensive property and it’s the ratio of mass to volume of a substance at a given temperature and pressure. $2000 What is “density?”

65. $400 What is “an inference?” Drawing a conclusion, offering an explanation, or deciding that a chemical reaction occurred.

66. Color and color change, temperature and temperature change, smell, and measurements that you make are all examples of this. $800 What is “an observation?”

67. $1200 What is a chemical reaction has occurred? This is an inference that could be made if gas is produced when two solutions are mixed together.

68. In the 18th century Antionne Lavoisier experimented with oxides such as CO 2 and SO 2. He observed that they formed acidic solutions in water. He concluded that acids contain oxygen. $1600 What is an “inference?” This is what we call the category of information that includes Lavoisier’s conclusion.

69. $2000 What are inferences? This is how we can predict the behavior of atoms even though they cannot be directly observed.

70. Daily Double This is what an direct proportion looks like. What is a graph that follows a straight line with a positive slope or a math problem in the form ?

71. Daily Double This is what an indirect proportion looks like. What is a graph that follows a curve from near the top of the y axis down and then curving to the right to follow the x axis or a math problem in the form: x  y = k ?

72. Daily Double What is crossing out the units and species? This is what is missing from this dimensional analysis calculation:

73. The Jeopardy champion!