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What is the rock cycle?

Back

The rock cycle is a continuous process that describes how rocks change from one type to another over time through various geological processes.

Tags

NGSS.MS-ESS2-1

Front

What are the three main types of rocks?

Back

The three main types of rocks are igneous, sedimentary, and metamorphic.

Tags

NGSS.MS-ESS2-1

Front

How are igneous rocks formed?

Back

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

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What is magma?

Back

Magma is molten rock located beneath the Earth's surface.

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What is lava?

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Lava is molten rock that has erupted onto the Earth's surface.

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What processes lead to the formation of sedimentary rocks?

Back

Sedimentary rocks are formed through erosion, deposition, and compaction of sediments.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as wind or water.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Front

What is deposition?

Back

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

Tags

NGSS.MS-ESS2-2

Front

What is compaction?

Back

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

Tags

NGSS.MS-ESS1-4

Front

How are metamorphic rocks formed?

Back

Metamorphic rocks are formed from existing rocks that are changed by heat and pressure.