Download Chapter 6 study guide

Chapter 6 study guide (and igneous rocks)
1. Define volcano
2. Where are most volcanoes found?
3. What are two types of plate boundaries and how does the Earth’s crust move at these
boundaries?
4. When lava or magma hardens it forms what type of rock?
5. How are igneous rocks classified?
6. What are the three textures an igneous rock can have?
7. What mineral will make an igneous rock light in color?
8. If a magma chambers hardens slowly underground what size crystals will the igneous
rock have?
9. If lava hardens quickly on the surface, what kind of texture will the igneous rock have?
10. If magma begins to harden slowly underground, then is forced up to the surface and
continues to harden quickly, what kind of texture will the rock have?
11. Give an example of an igneous rock with fine texture and coarse texture?
12. What is a hot spot?
13. How do hot spots form volcanoes?
14. What is the main “thing” magma needs to contain in order to rise to the surface?
15. What is silica?
16. What does silica do to magma?
17. Magma that does not contain a lot of silica is___ and ___
18. If a volcano erupts quietly, what 2 types of lava flows will it have?
19. If a volcano erupts explosively, what will it produce in addition to (sometimes) lava
flows?
20. What type of volcano forms from quiet eruptions?
21. What type of volcano forms from an explosive eruption without any lava flows?
22. What type of volcano forms from an explosive eruption with lava flows?
23. Give an example of a popular shield volcano.
24. What is a pyroclastic flow?
25. What are the three stages a volcano can move through?
26. Describe each of these phases
27. Other types of volcanic activity include hot springs and geysers. Explain the difference
between a hot spring and a geyser?
28. List 3 kinds of hazards associated with volcanoes
29. How does a caldera form?
30. What is a batholith?
31. What is a dike?
32. What is a sill?
33. What is a volcanic neck?
34. What type of volcano is made of ONLY ash, cinders, blocks and bombs?
35. What type of volcano is made from ash, cinders, blocks and bombs AND lava flows?
36. What type of volcano is made of thin, runny lava flows?
37. What is a lava plateau?
38. Why is geothermal energy so awesome?
39. MEMORIZE YOUR VOLCANO DIAGRAM!