Weight or Mass

1. 1 Weight or Mass Which of the following measurements would be affected by altitude?

2. Weight or Mass Which of the following measurements would be affected by altitude? Weight is affected by gravity, mass is not

3. 2 Which of the following would not be considered matter: A. atoms B. heat C. alloys D. pudding

4. Which of the following would not be considered matter: A. atoms B. heat C. alloys D. pudding Heat does not have mass or take up space. It is a form of energy.

5. 3 After extensive experimentation what end result of the scientific method offers an explanation of what occurs in nature. A Law or a Theory

6. After extensive experimentation what end result of the scientific method offers an explanation of what occurs in nature. A Law or a Theory Theories explain while law merely state what occurs

7. 4 Which of the following properties couldn’t you describe quantitatively: Temperature Time Pressure Color

8. Which of the following properties couldn’t you describe quantitatively: Temperature Time Pressure Color Numbers are not used to describe color.

9. 5 What type of matter does jello represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture

10. What type of matter does jello represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture When you look at a homogeneous mixture, you only see one thing even though there are several components to the mixture

11. 6 What type of matter does Copper II chloride (CuCl2) represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture

12. What type of matter does Copper II chloride (CuCl2) represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture Compounds, by definition, must contain two or more different elements.

13. 7 What type of matter does this granite represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture

14. What type of matter does this granite represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture More than one component of a heterogeneous mixture is visible.

15. 8 Oskar went into the grocery store in June (2011) and saw a shelf piled high with boxes of candy canes that are on sale. Oskar thinks that this is strange and assumes that they are left over from last winter. He grabs one of the boxes and examines it for a sell by date. The date on the box is 11/2011. What is Oskar’s Hypothesis?

16. Oskar went into the grocery store in June (2011) and saw a shelf piled high with boxes of candy canes that are on sale. Oskar thinks that this is strange and assumes that they are left over from last winter. He grabs one of the boxes and examines it for a sell by date. The date on the box is 11/2011. What is Oskar’s Hypothesis? The candy canes are left over from last year and outdated Oskar’s hypothesis was refuted (not supported) by the date on the boxes.

17. 9 The observation of this property of matter is always accompanied by a change in the composition of matter? Physical or Chemical

18. The observation of this property of matter is always accompanied by a change in the composition of matter? Physical or Chemical The composition of matter does not change in a physical change.

19. 10 What type of change is represented by the freezing of water to form ice? Physical or Chemical

20. What type of change is represented by the freezing of water to form ice? Physical or Chemical When water freezes there is no change in the composition (what it is made of). Liquid water and ice are both made of H20.

21. 11 What are the three states of matter?

22. What are the three states of matter? Solid, Liquid and Gas

23. 12 Which of the following is not a physical property? Temperature Ability to dissolve Color Ability to rust

24. Which of the following is not a physical property? Temperature Ability to dissolve Color Ability to rust In order to see rust, a change in the composition of the original material must occur. Rust: O

25. 13 Which of the following has definite volume and an indefinite shape? Solid Liquid Gas

26. Which of the following has definite volume and an indefinite shape? Solid Liquid Gas

27. 14 Which of the following types of matter can be separated by physical change? Elements Compounds Mixtures

28. Which of the following types of matter can be separated by physical change? Elements Compounds Mixtures

29. 15 A solution is another name for: element compound homogeneous mixture heterogeneous mixture

30. A solution is another name for: element compound homogeneous mixture heterogeneous mixture

31. 16 What type of matter is oxygen (O2)? element compound homogeneous mixture heterogeneous mixture

32. What type of matter is oxygen (O2)? element compound homogeneous mixture heterogeneous mixture s not contain two or more different elements

33. 17 What separation technique would be used to separate a heterogeneous mixture containing a solid and a liquid? distillation chromatography filtration crystallization

34. What separation technique would be used to separate a heterogeneous mixture containing a solid and a liquid? distillation chromatography filtration crystallization

35. 18 What separation technique would be used to separate a homogeneous mixture containing a solid and a liquid? distillation chromatography filtration crystallization

36. What separtation technique would be used to separate a homogeneous mixture containing a solid and a liquid? distillation chromatography filtration crystallization .

37. 19 What technique uses the physical property of boiling point to separate components of a mixture? distillation chromatography filtration crystallization

38. What technique uses the physical property of boiling point to separate components of a mixture? distillation chromatography filtration crystallization . Substances with lower boiling points Will vaporize first and the gas can be condensed back to A liquid.

39. 20 What type of reaction is associated with the absorption of energy? Exothermic or Endothermic

40. What type of reaction is associated with the absorption of energy? Exothermic or Endothermic

41. 21 According to the Law of Conservation of Mass, what must the mass of CO2 be in the following equation? C6H12O6+ 6O2 6CO2 + 6H2O 54g + 98g =__99_ + 53g

42. According to the Law of Conservation of Mass, what must the mass of CO2 be in the following equation? C6H12O6+ 6O2 6CO2 + 6H2O 54g + 98g = _99g_ + 53g

43. 22 Which of the following is not an indication of a chemical change? formation of a gas change in color formation of a precipitate melting

44. Which of the following is not an indication of a chemical change? formation of a gas change in color formation of a precipitate melting

45. 23 Which of the two substances is more dense? A or B

46. Which of the two substances is more dense? A or B

47. 24 Solve the following word problem: What is the volume of a 5 pound (2270 g) gummy bear if its density is 1.56 g/ml?

48. Solve the following word problem: What is the volume of a 5 pound (2270 g) gummy bear if its density is 1.56 g/ml?