Inside the Ring of Fire: How the Earth was Made (S2, E7): History Channel
1
What percentage of Earth's volcanoes are situated along the ring of fire?
2. What ocean does the ring of fire surround?
3. Which volcano erupted in May, 1980?
4. 75% percent of all volcanoes in the United states are situated in what state?
5. What type of volcano is Augustine volcano?
6. What was the last time the Agustine volcano erupted?
7. What does a blocky lava flow tell you about a volcano's eruption?.
8. What is the most abundant mineral in the Earth's crust?
9. True or false: Magma rich in silica is extremely viscous (thick).
10. What happens when gasses build up pressure inside a volcano in the Ring of Fire?
11. What does the presence of hornblende in a lava rock tell about the lava/magma formation?
12. Does water make magma more or less explosive?
13. What is a fumarole?
14. What does the carbon-12 found in the fumaroles tell scientists about the gases released by the fumaroles?
15. Where does the water found below the volcanoes that help to melt the rock into magma come from?
16. What geologic process causes the oceanic sediments to end up under volcanoes, becoming part of the volcanoes
magma?
17. Aside from volcanoes, what other destructive natural disaster results from the Ring of Fire?
18. What do the boulders along the shore in Alaska tell geologists about the geologic changes that resulted from the
massive Earthquake that occurred in 1964?
19. What type of earthquake occurred in Alaska in 1964?
20. What happens when megathrust earthquakes occur under the ocean?
21. What caused the 2004 tsunami that hit the Asian coast?
2. What is the seismic data collected at the seismic stations in Alaska used for?
5. How many Earthquakes occur every month in Alaska?