Science Experiments and Lab Techniques

1. Unit 1 Review You will need a calculator, white board and marker, but no notes allowed. Get into your lab groups

2. Jeopardy Double Jeopardy

3. Experiments – 100 This is the part of an experiment that the scientist changes.

4. Back to Board Experiments – 100 What is the independent variable?

5. Random Points 200

6. Experiments – 200 This type of data is numerical.

7. Back to Board Experiments – 200 What is quantitative data?

8. Daily Double

9. Experiments – 300 A scientist wants to know if caffeine can help students concentrate in class. In the experiment, this would be the control.

10. Back to Board Experiments – 300 What is students with no caffeine?

11. Experiments – 400 In a lab, a student needs to find the volume of a solid. They measure the mass to be 5.50 g and they also know that the density is 2.25 g/mL. Calculate the volume.

12. Back to Board Experiments – 400 What is 2.44 mL?

13. Dimensional Analysis / SI Units – 100 This is the base unit of mass.

14. Back to Board Dimensional Analysis / SI Units – 100 What is the kilogram?

15. Daily Double

16. Dimensional Analysis / SI Units – 200 This special SI base unit is the measure of the amount of a substance.

17. Back to Board Dimensional Analysis / SI Units – 200 What is the mole?

18. Dimensional Analysis / SI Units – 300 Change 780 cm3 to L

19. Back to Board Dimensional Analysis / SI Units – 300 What is 0.780 L?

20. Dimensional Analysis / SI Units – 400 Change 0.09892 km to mm.

21. Back to Board Dimensional Analysis / SI Units – 400 What is 98920 mm?

22. Separating Mixtures – 100 A fancy term for separating two components by pouring.

23. Back to Board Separating Mixtures – 100 What is decanting?

24. Separating Mixtures – 200 The name of the technique used to separate a mixture’s components through differences in particle size.

25. Back to Board Separating Mixtures – 200 What is filtration?

26. Daily Double

27. Separating Mixtures – 300 Name the experimental setup used to separate the components of a colored ink sample shown in the figure.

28. Back to Board Separating Mixtures – 300 What is chromatography?

29. Separating Mixtures – 400 This technique can be used to remove iron filings from a pile of sugar.

30. Back to Board Separating Mixtures – 400 What is magnetism?

31. Accuracy … – 100 This is being close to the actual number.

32. Back to Board Accuracy … – 100 What is Accuracy?

33. Accuracy … – 200 This is the formula to calculate percent error.

34. Back to Board Accuracy … – 200 • What is • Percent Error = Accepted – Experimental x100 • Accepted

35. Accuracy … – 300 During an experiment, a group measures a mass three times. They measure it as 6.5, 7.0, and 6.0. The actual value is 6.49. How would you describe this scenario?

36. Back to Board Accuracy … – 300 What is accurate but not precise?

37. Daily Double

38. Accuracy … – 400 The mass of a 3.45-g piece of aluminum was measured several times. The measured masses were 2.67 g, 2.59 g, 2.60 g, and 2.64 g. Use the average of the measured masses to determine the percent error of this experiment.

39. Back to Board Accuracy … – 400 What is 23.9%?

40. Random Points 400

41. Day 1 Topics – 100 Are all chemicals dangerous?

42. Back to Board Day 1 Topics – 100 What is no?

43. Day 1 Topics – 200 Matter includes all of the following except a. water vapor. b. smoke. c. air. d. light.

44. Back to Board Day 1 Topics – 200 What is d. light?

45. Daily Double

46. Day 1 Topics – 300 On the side wall, this is what AAA means.

47. Back to Board Day 1 Topics – 300 What is Always Add Acid?

48. Day 1 Topics – 400 This branch of chemistry focuses on the element carbon.

49. Back to Board Day 1 Topics – 400 What is organic chemistry?

50. Double Jeopardy Final Jeopardy