1. What are the three major classifications of rocks? Answer Igneous Sedimentary Metamorphic

2. What do you call hot , liquid rock that is still inside the earth? Answer Magma

3. Name the mineral that is used to make the "lead" in pencils. Answer Graphite

4. What do you call a line drawn with a rock on a special porcelain plate? Answer a Streak

5. What is hot, liquid rock called after it has come out of a volcano? Answer Lava

6. What kind of rocks have been changed by heat and pressure insde the earth? Answer Metamorphic

7. Name a type of rock that is burned as a fuel. Answer Coal

8. Separating rocks and minerals into different groups according to color, texture, and luster is called_________________. Answer classifying.

9. What is the hardest natural substance on earth? Answer Diamond

10. What kind of rock is formed when magma or lava cools and hardens? Answer Igneous

11. What do you call the way a rock or mineral reflects light? Answer luster

12. What do you call plants and animals that are preserved in rocks? Answer Fossils

13. Name two kinds of rocks that can split apart into very thin, flexible layers. Answer Biotite Mica

14. What kind of rock is formed in layers, usually at the bottom of an ocean or lake? Answer Sedimentary

15. Name a type of igneous rock that floats. Answer Pumice

16. Solid substances that are found in the earth's crust are called _________. Answer Minerals

17. What force uses wind and water to wear down rocks? Answer Erosion

18. What do you call the way a rock or mineral feels? Answer Texture

19. Rocks are made up of one or more ____________. Answer minerals

20. The changing of rocks from one kind to another over millions of years is called the ___________. Answer rock cycle

1. All rocks leave a streak on a streak plate. True or False False

2. Classifying things into groups can help us to identify them. True or False True

3. Hydrochloric acid will dissolve all kinds of rocks. True or False False

4. Crystals are always the same size and shape. True or False False

5. Rocks and minerals are valuable natural resources. True or False True

6. Much of the surface of the earth was formed by volcanic activity. True or False True

7. Quartz is a very soft mineral. True or False False

8. Crystals that cool very slowly form large crystals. True or False True

9. The Hawaiian Islands were formed by volcanoes. True or False True

10. The way a rock or mineral reflects light is called its texture. True or False False