Earth Science Lesson 1.3: The Rock Cycle

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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 geological processes, including igneous, sedimentary, and metamorphic formations.

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How are Sediments formed?

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Sediments are formed through the processes of weathering and erosion, where rocks are broken down into smaller particles.

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What is Weathering?

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Weathering is the process of breaking down rocks into smaller pieces through natural forces such as wind, water, and temperature changes.

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What is Erosion?

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Erosion is the process by which sediments are transported from one location to another by natural forces such as water, wind, or ice.

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What is Compaction?

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Compaction is the process by which sediments are pressed together under pressure, reducing their volume.

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What is Cementation?

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Cementation is the process where dissolved minerals precipitate from water and fill the spaces between sediment particles, binding them together.

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What are Igneous Rocks?

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Igneous rocks are formed from the cooling and solidification of magma or lava.

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What is the difference between Intrusive and Extrusive Igneous Rocks?

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Intrusive igneous rocks form from magma that cools slowly underground, resulting in larger crystals, while extrusive igneous rocks form from lava that cools quickly on the surface, resulting in smaller crystals.

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What are Sedimentary Rocks?

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Sedimentary rocks are formed from the accumulation and compaction of sediments, often containing fossils.

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What are Metamorphic Rocks?

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Metamorphic rocks are formed from existing rocks that undergo changes due to heat, pressure, or chemically active fluids.