Volcano Vocab

1. a crack in the earth through which warm water reaches the surface.
7. molten rocky material that is underground.
9. heated water that bursts out of earths surface.
10. the layers build up over time around a volcano.
12. type of eruption that is slow and calm.
13. large structure of igneous rock that forms when a magma chamber does not erupt.
15. type of eruption that is fast and violent.
18. the type of volcano that hasn’t erupted recently but may erupt again.
19. solids that fall from an explosive eruption.
20. the tallest type of volcano. It can explosively or effusively erupt.
21. the type of energy created from the movement of water heated underground.
23. the connection between a magma chamber and the surface.
24. an extremely large and dangerous volcano.
25. the measurement of flow rate for liquids.
27. type of lava that flows underwater, forming small spherical shapes.

2. type of lava that is less viscous and cools into rounded wrinkled shapes.
3. blocked vents cause a buildup of ____ which leads to explosive eruptions.
4. a large pool of magma close to earth's surface.
5. type of lava that is more viscous and cools into sharp jagged pieces.
6. a large flat surface made from low viscosity lava flow.
8. the type of volcano that is currently erupting or shows signs of erupting soon.
11. a crater at the top of some volcanoes.
14. the smallest type of volcano. It only explosively erupts.
16. the type of volcano that hasn’t erupted and will likely never erupt again.
17. molten rocky material on Earth’s surface.
22. a round blob of solidified lava, often found at the top of volcanoes.
23. any rupture in the Earth’s crust that allows lava to escape onto the surface.
26. the widest type of volcano. It only effusively erupts.