NUNA 10 – Geology Quiz – The Earth and its Rocks and Minerals 1. True or False: The inner core is solid. a. True b. False 2. How thick is the earth’s crust? a. 1 km thick b. 8-64 km thick c. 105-186 km thick d. 2800-3000 km thick 3. Which two elements are found in both the inner and outer core of the earth? a. Gold and mercury b. Lithium and Silicon c. Copper and Zinc d. Nickel and Iron 4. A naturally occurring solid that is made up of one type of chemical compound only is called a _____________. a. Crust b. Crystal c. Mineral d. Rock 5. True or false: Rocks can include stuff that used to be alive. a. True b. False 6. A ______________ is made up of two or more minerals. a. Crystal b. Quartz c. Rock d. Streak 7. Rocks that are formed from melted or liquid material are ____________ rocks. a. Igneous b. Metamorphic c. Sedimentary 8. A rock with large crystals cooled ______________. a. Quickly b. Slowly 9. A rock with small crystals cooled ________________. a. Deep underground (Intrusive) b. On the earth’s surface (Extrusive) 10. Hot melted rock below the surface of the earth is called ___________. a. Lava b. Magma c. Metamorphic d. Corona 11. A type of rock that cooled so fast that it does not have any crystals is _____________. a. Granite b. Obsidian c. Quartz d. Basalt 12. A type of rock that is formed from fragments of rocks that have hardened together by pressure and cementing is _______________. a. Igneous b. Metamorphic c. Sedimentary 13. A type of rock that is changed by heat and/or pressure is called a ________________ rock. a. Igneous b. Metamorphic c. Sedimentary 14. Which of the following types of sediments has the largest size? a. Clay b. Pebbles c. Sand d. Silt 15. Wind, glaciers and moving water are all ways that _____________. a. Change the crystal size in igneous rocks b. Move rock fragments of different sizes to places where sedimentary rocks are formed c. Create heat and pressure to metamorphose existing rocks. 16. When dissolved minerals in water help glue rock fragments together, it is called _______________. a. Curing b. Cementing c. Metamorphosis d. Sedimentation 17. Gneiss (pronounced “nice”) is an example of _________________. a. An igneous rock b. A sedimentary rock c. A metamorphic rock d. A mineral 18. True or False: Sedimentary rocks can be formed from fragments of other sedimentary rocks. a. True b. False 19. True or False: Igneous rocks can be formed from other rocks without melting. a. True b. False 20. True or False: Sandstone is harder than quartzite. a. True b. False 21. Label the layers of the earth. (4) 22. Label the missing parts of the Rock Cycle. (4) Igneous (from lava – above ground) Igneous (from magma – underground) Sedimentary Metamorphic