Chapter 3 Review

Cones, Eruptions, and Pyroclasts

Name___________________

1. What is lava?

2. Name the two smallest particles of pyroclastic material.

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3. Name the two largest particles of pyroclastic material.

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4. What is a pyroclastic flow?

5. What is the difference between pahoehoe and aa lava flows?

6. What is the difference between high and low viscosity magma?

7. How does a lava tube form?

8. Name the two reasons that volcanic eruptions occur?

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9. Draw the three volcanic cone shapes and label each.

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10. What are the two most non-explosive eruption types?

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    2.  

11. What are the two most explosive eruption types?

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    2.  

12. What is a hot spot? Use the term mantle plume in your definition.

13. What is a caldera?

14. How does a caldera form?