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2. Physical Science Unit Today’s Categories are…

3. What’s the Matter?

4. Warmin’ Up and Chillin’ Out!

5. Mixing It Up!

6. Off My Property!

7. Time Off for “Good Conduct”

8. It’s All Chemical!

9. Warmin’ Up and Chillin’ Out Time Off for “Good Conduct”
What’s the Matter?
Mixing It Up!
Off My Property!
It’s All Chemical!
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10. What is the definition of matter?

11. Matter is anything that has mass AND takes up space.

12. Which type of matter is this?

13. gas

14. Which type of matter takes the shape of its container but might not fill the container?

15. liquid

16. Which type of matter represents the particles that could make up a wooden block?

17. solid

18. What is mass?

19. Mass is the amount of “stuff” in an object.

20. What is the change of state from a liquid to a gas?

21. evaporation

22. What is condensation?

23. the change of state from a gas to a liquid

24. What kind of change is the melting of an ice cube?

25. a physical change

26. What forms when water vapor in the air cools so quickly that it freezes on surfaces?
frost snow sleet rain

27. frost

28. When water boils in a pot, the water level in the pot gets lower
When water boils in a pot, the water level in the pot gets lower. What happens to the water?

29. Boiling causes the water to evaporate, or become a gas.

30. What happens when a solid dissolves in a liquid?

31. The tiny solid particles become evenly mixed into the liquid.

32. What are mixtures?

33. All mixtures are a combination of materials that do not change into new material when mixed.

34. How can you separate the salt from a cup of salt water?

35. Allow the salt water to sit until the water evaporates, leaving the salt behind

36. When matter changes state, the total amount of matter stays the same
When matter changes state, the total amount of matter stays the same. What is the name of this principle?

37. conservation of matter

38. What property describes the ability of sugar to dissolve in tea?

39. solubility

40. What is another name for “observable characteristics” of a material?

41. properties

42. Which property is a measure of how resistant a material is to scratching, bending, or denting?

43. hardness

44. How can you test the hardness of a material?

45. do a scratch test

46. Which property allows you to see your image in a mirror?

47. reflectivity

48. What property can be used to pick up steel paper clips from the floor?

49. magnetism

50. Name two materials that are good electrical conductors.

51. copper, gold, silver, or iron

52. True or false?
Metals such as copper tend to be good thermal conductors and good electrical conductors.

53. True

54. Which object is a good insulator of electrical and thermal energy?
copper penny
wooden spoon
iron frying pan
aluminum foil

55. wooden spoon

56. What is the energy of moving particles called?

57. thermal energy

58. Which property is affected by the use of electrical insulators?
magnetism
reflectivity
hardness
conductivity

59. conductivity

60. What happens during a chemical change?

61. The material and its properties change.

62. What is the process by which a chemical change occurs?

63. chemical reaction

64. Which is a sign of a chemical change?

65. production of heat, light, odor, flames, bubbles, or color change

66. What changes occur when a piece of toast is burned?

67. The bread changes in color and gives off a different odor.

68. When liquids mix in a glow stick, the total mass of matter increases.
True or false?
When liquids mix in a glow stick, the total mass of matter increases.

69. the total matter stays the same
False:
the total matter stays the same

71. In ALL chemical reactions, what always occurs?
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72. New materials and new properties form.