Chapter 4 Reading Questions
Rocks
Please answer these questions on a separate sheet of paper. These questions deal with Chapter 4 that
starts on page 89 and ends on page 117. Good luck!!
Section 1 The Rock Cycle
1. Name 4 common rock forming minerals.
2. Can volcanoes make glass?
3. Using figure-2 in your book, what two processes cause a rock to become sediment?
4. Using figure-2 in your book, what one process causes a rock to become magma?
5. What are the three types of rocks and how does each form?
6. Can matter be removed from the rock cycle?
7. Who discovered the rock cycle?
8. What is the principle of conservation of matter?
Section 2 Igneous Rocks
9. What is the temperature of magma?
10. Where does magma come from?
11. When magma flows out of volcanoes it is given what name?
12. Igneous rocks that form in the ground or under the surface are called ________ igneous rocks?
13. When an intrusive igneous rock takes a long time to form what size are the mineral crystals that
make up the rock?
14. Igneous rocks that form on the surface of the earth are called _______ igneous rocks?
15. When an extrusive igneous rock takes a very short time to cool and harden, what size mineral
crystals will it have?
16. Name 3 examples of volcanic glass.
17. What causes rocks to have pores or holes in them?
18. What are the 3 ways igneous rocks are classified?
19. Differentiate between basaltic, granitic, and andesitic igneous rocks.
Section 3 Metamorphic Rocks
20. What conditions can cause an igneous or sedimentary rock to become metamorphic?
21. As depth increases in Earth so does _______?
22. Sedimentary rock shale undergoes heat and pressure and becomes ________?
23. Explain how hot fluids can cause rock to undergo metamorphosis?
24. How are igneous rocks classified?
25. Why is slate a good rock for patios and shingles?
26. Differentiate between foliated and non-foliated rocks?
Section 4 Sedimentary Rocks
27. What percentage of sedimentary rocks are exposed at the surface?
28. When dealing with sedimentary rocks that are layered, where is the oldest rock normally found?
Explain.
29. How are sedimentary rocks classified?
30. What does detrital mean?
31. Explain how a detrital sedimentary rock forms.
32. According to figure 2 which sediment is the largest? Smallest?
33. Name two examples of a chemical sedimentary rock.
34. Explain how organic sedimentary rocks form.
35. Give two examples of an organic sedimentary rock.