Location of Volcanoes – Chapter 10 – Quiz Questions #2
pp. 209 - 214
1. What did early map makers notice about the locations of volcanoes?
2. What causes the region called the Ring of Fire?
3. If you could melt a piece of quartz in some lava, would the lava get more sticky or less sticky? Explain your answer.
4. Where is runny lava found: (a) On a continental plate, or (b) on an oceanic plate? Why?
5. Where is thick and sticky lava found: (a) On a continental plate, or (b) on an oceanic plate? Why?
6. When volcanic island chains are formed, what moves? Pick the correct answer:
a. the mantle plume c. both the plate and the plume
b. the plate above the mantle plume d. nothing moves
7. Which of the Hawaiian Islands formed first and how long ago did it form?
8. What kind of geologic formation is Loihi? Is it a part of the Hawaiian chain? Explain your answer.
9. How have scientists figured out that the Pacific Plate is moving at about 9 centimeters per year?
10. If the Pacific Plate is moving at 9 cm per year, calculate:
a. How long will it take for this plate to travel 4.5 meters?
b. How far will the plate have travelled in meters after 3 years?
11. What are the names of the items (A-C) on the graphic shown to the right? (color version found on page 214)?
12. Name a difference between an island chain and an island arc.