Chapter 3 Review

Cones, Eruptions, and Pyroclasts



Name___________________



1. What is lava?







2. Name the two smallest particles of pyroclastic material.







3. Name the two largest particles of pyroclastic material.







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?









9-14. Draw the three volcanic cone shapes and label each.















15-16. What are the two most non-explosive eruption types?







17-18. What are the two most explosive eruption types?







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







20. What is a caldera?







21. How does a caldera form?