Study guide for ROCKS TEST: September 21 Name: ________________________ 1. Weathering is the process in which water, wind; ice and heat break down rocks. 2. Humans used rocks to make tools in the past. 3. Sedimentary rocks form through cementation. 4. When magma cools quickly, rocks will have a coarse-grained texture. 5. Metamorphism will occur if there’s an increase in temperature and pressure. 6. An increase in pressure on rock does not cause magma to form. 7. Rocks are classified according to texture and composition. 8. Deformation is the process in which rocks change shape,. 9. An igneous rock forms when magma cools. 10. A foliated metamorphic rock has mineral grains arranged in planes or bands. 11. The three types of sedimentary rocks are clastic, chemical and organic. 12. An intrusive igneous rock forms when magma cools below the earth’s surface. 13. Minerals change into more stable minerals when temperature and pressure change. 14. The chemical makeup of rock is composition. 15. Texture refers to the quality of rock based on size and shape of mineral grains. 16. Deposition is the process in which sediments are dropped and laid to rest. 17. Rock cycle is the process in which new rock is made from old rock. 18. Erosion is the process by which water, wind and gravity move sediments and rocks from one place to another. 19. Rocks are naturally occurring solid mixture of one or more minerals and organic matter. 20. Strata are layers found in sedimentary rocks. 21. Extrusive igneous rock cools at the earth’s surface. 22. A nonfoliated metamorphic rock has mineral grains that are not arranged in planes or bands. 23. Stratification is the process in which layers of sedimentary rocks are formed. 24. The minerals found in a rock determine its composition. 25. Rocks change composition during the rock cycle. 26. Granite is a coarse-grained igneous rock. 27. Coal is formed from decomposed plant material. 28. Magma cools and solidifies as igneous rocks. 29. Conglomerate is a coarse-grained sedimentary rock. 30. Igneous rocks can be exposed and erode into grains of sand and clay that will deposit on the ocean floor and become sedimentary rocks. 31. Why is sedimentary rock more common on the surface than metamorphic rock? 32. What does an extrusive rock tell about things going on below the Earth?