Volcanoes
Vocabulary
100
Mid-Atlantic Ridge, Ring of Fire, and Hot Spots- Hawaiin islands
What is the 3 regions of the earth that have a lot of volcanic activity?
100
Hot magama erupts into the cold ocean and immediately cools on the ocean floor.
What is pillow lava?
200
Lava is molten rock outside of the volcano. Magma is molten rock inside of the volcano.
What is the difference between magma and lava?
200
Cooler magma pushes up the land and rock.
What is a lava dome?
300
Active- Currently spewing lava, Dormant- Not currently active, Extinct- No longer active
What are the three stages of a volcano? Describe the three.
300
The struture that gives off runny lava that flows over the earths surface.
What is a volcano vent?
400
They evacuate the area, work in groups, wear safety gear, always aware/careful, use special tools around lava, and are trained in helicopter safety.
What are some safety percautions taken by volcanologists?
500
Glass particles, volcanic rock particles, and minerals.
What is volcanic ash made of?
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