Rock Cycle & Age of Earth

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What is the Rock Cycle?

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The Rock Cycle is a continuous process that describes the transformation of rocks through various stages: igneous, sedimentary, and metamorphic.

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What are igneous rocks?

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

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What is sedimentary rock?

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Sedimentary rock forms from the accumulation and compaction of sediments, which can include minerals, organic matter, and fragments of other rocks.

Tags

NGSS.MS-ESS2-1

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What are metamorphic rocks?

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Metamorphic rocks are formed when existing rocks are subjected to intense heat and pressure, causing physical and chemical changes.

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What is weathering?

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Weathering is the process that breaks down rocks into smaller pieces through natural forces like wind, water, and temperature changes.

Tags

NGSS.MS-ESS2-2

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What is erosion?

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Erosion is the movement of sediments from one location to another, often caused by water, wind, or ice.

Tags

NGSS.MS-ESS2-2

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What is deposition?

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Deposition is the process where sediments settle out of the transporting medium (like water or air) and accumulate in a new location.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

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What is cementation?

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Cementation is the process where dissolved minerals crystallize and bind sediment particles together, forming sedimentary rock.

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What is the difference between magma and lava?

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Magma is molten rock beneath the Earth's surface, while lava is molten rock that has erupted onto the Earth's surface.

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What is the process of metamorphism?

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Metamorphism is the process by which existing rocks are transformed into metamorphic rocks due to heat, pressure, and chemically active fluids.