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a weak spot in the crust where magma has come the surface volcano
the molten mixture of rock-forming substances, gases and water from the mantle magma
liquid magma that reaches the surface; also the rock formed when liquid lava hardens lava
A major belt of volcanoes that rims the Pacific Ocean Ring of Fire
a string of islands formed by the volcanoes along a deep ocean trench island arc
an area where magma from deep within the mantle melts through the crust above it. hot spot
a substance that cannot be broken down into other substance. element
A substance in which two or more elements are chemically joined. compound
Any characteristic of a substance that can be observed or measured without changing the composition of the substance. physical property
Any property of a substance that produes a change in the composition of matter. chemical property
the resistance of a liquid to flowing. viscosity
A material found in magma that is from the elements oxygen and silicon silica
A hot-moving type of lava that hardens to form smooth, rope-like coils. pahoehoe
A slow-moving type of lava that hardens to form rough chunks. aa
the pocket beneath a volcano where magma collects. magma chamber
A long tube through which magma moves from the magma chamber to earth's surface. pipe
Created by: 6bscience112