8th Grade Science Chapter 3 - OrgSites.com

13 downloads 211 Views 204KB Size Report
8th Grade Science Chapter 3. 1. What do we mean when we talk about the “ states of matter?” 2. Name the 4 most familiar states of matter? 3. Reminder, what is ...
8th Grade Science Chapter 3 1. What do we mean when we talk about the “states of matter?”

2. Name the 4 most familiar states of matter?

3. Reminder, what is matter made up of?

4. How do you know the “state” in which the matter of a substance exists?

5. Describe the molecules of a solid.

6. Describe the molecules of a liquid.

7. Describe the molecules of a gas.

8. Does a solid have a definite shape and volume? Think about the boat in the bottle example.

9. What are the 2 categories of solids? Name each category and give a couple of examples of each.

10. Does a liquid have a definite shape and can it change its’ shape and/or volume?

8th Grade Science Chapter 3 11. One great example in industry where they use liquids is in hydraulic systems, why do liquids work so well in these situations?

12. What are 2 other important properties of a liquid? Name them and describe what they are.

13. What is a gas?

14. Can the shape and volume of a gas change, why or why not? Think of the balloon example.

15. List 2 common properties that all particles of matter share in common.

16. Describe pressure.

17. Describe why a basketball has a higher pressure than a beach ball.

18. Describe Boyle’s law.

19. What is a good example of Boyle’s law?

20. Describe Charles’s law.

8th Grade Science Chapter 3 21. Compare Boyle’s law and Charles’s law.

22. Why do scientists record the temperature and pressure of a gas when calculating athe volume of a gas?

23. What is plasma?

24. List 2 differences between a gas and plasma.

Chapter 3, Section 2

25. What is a change of state?

26. Are changes of state a physical or chemical change? Why?

27. What is a substance’s source of energy?

28. What happens to the particles of a substance if energy is added? If energy is actually removed?

29. What is the definition of temperature?

30. What does heat, a transfer of energy, cause to happen to a substance?

8th Grade Science Chapter 3

31. Define the term melting.

32. How would we define the term melting point?

33. (T/F) Most substances have a unique melting point. Explain

34. What is a characteristic property of a substance?

35. What has to happen in order for a solid to melt?

36. What is an endothermic change?

37. Define the term freezing.

38. Does freezing and melting occur at the same temperature? Why?

39. What must happen to a substance in order for a substance to freeze?

40. What is an exothermic change?

8th Grade Science Chapter 3 41. What is vaporization?

42. Define the term boiling.

43. What is the boiling point?

44. What is evaporation?

45. Is vaporization an endothermic or exothermic change?

46. Does pressure affect the boiling point of a substance? Why?

47. Define condensation.

48. Define the term condensation point.

49. Define sublimation

50. What must happen in order for sublimation to occur?

51. Classify whether the following are an endothermic or exothermic change. Melting, freezing, vaporization, condensation, and sublimation.

52. Does the temperature of a substance change during a change of state?