Types of Rocks

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What is a Sedimentary Rock?

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A type of rock formed from the compaction and cementation of bits of other rocks, minerals, and organic materials.

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What processes form Sedimentary Rocks?

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Compaction and Cementation.

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What is a Metamorphic Rock?

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A type of rock that has been changed from an existing rock due to extreme heat and pressure.

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How does a Metamorphic Rock change into an Igneous Rock?

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By the processes of Melting and Cooling.

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What is the main characteristic of Igneous Rocks?

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They are formed from the cooling and solidification of molten rock (magma or lava).

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What is the Rock Cycle?

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The continuous process of rock formation and transformation, including the formation of igneous, sedimentary, and metamorphic rocks.

Tags

NGSS.MS-ESS2-1

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What is Compaction in the context of rock formation?

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The process where sediments are pressed together under pressure, reducing their volume.

Tags

NGSS.MS-ESS2-2

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What is Cementation in rock formation?

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The process where dissolved minerals crystallize and bind sediment particles together.

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What is Weathering?

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The breaking down of rocks into smaller pieces by natural forces such as wind, water, and ice.

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What is Erosion?

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The process of moving weathered rock and soil from one location to another by wind, water, or ice.

Tags

NGSS.MS-ESS2-2