1. CRCT 1st Qtr. Review

2. What is a naturally occurring, inorganic, solid, with a crystal structure, and definite chemical composition?

3. Mineral

4. The basic building blocks that make up rocks are called what?

5. Minerals

6. What scale ranks ten minerals from softest to hardest?

7. Moh’s hardness Scale

8. What is the hardest known mineral to man?

9. Diamond

10. What is the softest known mineral to man?

11. Talc

12. Rocks are classified by what?

13. How they were formed

14. What are the three types of rocks?

15. Igneous, Sedimentary, Metamorphic

16. What rock forms from the cooling of lava or magma?

17. Igneous

18. What type of igneous rock forms below the surface?

19. Intrusive Igneous Rock

20. An Intrusive Igneous Rock usually cools slowly so what size crystals typically form?

21. Large, coarse, big

22. What type of Igneous Rock forms on or above the surface?

23. Extrusive Igneous Rock

24. An Extrusive Igneous Rock usually cools quickly so what size crystals typically form?

25. Small, fine

26. What rock forms in layers by the 4 step weathering process?

27. Sedimentary

28. What rock forms from heat and pressure deep within the Earth?

29. Metamorphic

30. What is a rock that contains a metal or a useful mineral?

31. Ore

32. When ore is melted to extract the useful metal the process is called what?

33. Smelting

34. The law of superposition states what about rock layers?

35. Youngest on top and oldest on bottom
Old – 1 million years
Older – 10 million years
Oldest – 100 million years

36. The law of superposition gives us what type of age of rock?

37. Relative Age

38. The age of rock compared to the ages of other rocks is called what?

39. Relative age

40. The number of years since the rock is formed is called what?

41. Absolute age

42. What is the method used to determine absolute age?

43. Radioactive/Radiometric dating

44. What three things (changes) can scientists determine from studying fossils?

45. How life, past environments, and climate have changed.

46. Fossils prove to us that life has changed from what to what?

47. Simple to complex

48. T/F = The fossil record shows us how “life” has changed.

49. True!

50. T/F = The fossil record shows us that certain organisms no longer live on Earth.

51. True!

52. T/F = Scientists can use the fossil record to mark the difference from one geologic time period from another.

53. True!

54. Useful or necessary supplies from nature are called what?

55. Natural resources

56. Resources that are used much faster than they are formed are called what?

57. Nonrenewable

58. Resources that can be continuously reused or replaced as fast as they are used are called what?

59. Renewable

60. What are 3 types of nonrenewable resources?

61. Coal, oil, natural gas

62. What are 3/5 renewable resources?

63. Sun, wind, water, trees, biomass

64. What are 4/6 types of alternative energy resources?

65. Solar, wind, hydroelectric, biomass, geothermal, nuclear

66. Wind and water are both indirect forms of what type of energy?

67. Solar

68. What causes most water and air pollution?

69. Activities of humans. All types

70. The variable(s) that scientists keep the same throughout an experiment are called what?

71. Controlled variables

72. The variable(s) that are considered the results in an experiment are called what?

73. Responding variable

74. The variable(s) that scientists change in an experiment are called what?

75. Manipulated variables

76. What device do scientists use in order to measure mass?

77. Triple Beam Balance

78. What device do scientists use in order to measure volume?

79. Graduated Cylinder