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The Rock Cycle

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Across
3
Melted rock below the Earth's surface
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solid masses of minerals or mineral-like materials
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Loose bits of weathered rock
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The name of the process when pressure turns sediment into sedimentary rock
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The breakdown of rock by physical or chemical processes
Down
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A natural glass, like obsidian, except it cooled more slowly and has holes where gas escaped
2
natural glass, which has no crystalline structure
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Type of rock with changed structure and composition due to heat, pressure and fluids.
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Type of rock formed when magma cools and crystallizes
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Melted rock that reaches the surface