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Earth Science Ch 3 Vocabulary

Across
Metamorphism that occurs when the heat of magma comes in contact with existing rocks
The magma that has reached the earth's surface
The melted rock beneath the earth's surface
A rock structure with visible layers or bands aligned in planes
A rock structure with no visible layers or bands
A rock formed when the structure and mineral composition of existing rocks change because of heat, pressure, or chemical reactions
The process by which one rock type changes into another
Down
Metamorphism that occurs when large regions of the earth's crust are affected by high temperatures and pressures
A sedimentary rock made of rock particles and fragments deposited by water, wind, or ice
Metamorphism that is produced by mechanical force
A clastic rock composed of silt- and clay-sized particles in flat layers
The dark-colored, heavy igneous rock that is rich in iron, magnesium, and calcium
An igneous rock formed when lava cools on the earth's surface
A rock formed from cooled and hardened magma
A rock formed from sediments that have been compacted and cemented together
An igneous rock formed when magma cools beneath the earth's surface
A light-colored, lightweight igneous rock that is rich in silicon, aluminum, sodium, and potassium