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Ch. 7-1/Volcanoes

8th grade science

Volcano a weak spot in the crust where molten material, or magma comes to the surface
Magma a molten mixture of rock-forming substances, gases, and water from the mantle
Lava Liquid magma that reaches the surface
Ring of Fire a major volcanic belt formed by the many volcanoes that rim the Pacific ocean
Island arc a string of islands formed by the volcanoes along a deep ocean trench.
Hot spot an area where material from deep within the mantle rises and then melts, forming magma
Created by: sbadger