ROCKS AND ROCK CYCLE

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What are igneous rocks?

Back

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

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What is the rock cycle?

Back

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 is weathering?

Back

Weathering is the process by which rocks break down into smaller pieces due to exposure to natural elements like wind, water, and temperature changes.

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What is erosion?

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Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind, water, or ice.

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What is cementation?

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Cementation is the process in which dissolved minerals crystallize and glue sediment together to form sedimentary rocks.

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What are sedimentary rocks?

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

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What are metamorphic rocks?

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

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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 magma that has reached the Earth's surface.

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What is the significance of fossils in rocks?

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Fossils in rocks provide evidence of past life and can indicate the environmental conditions that existed when the rock was formed.

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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 and leading to the formation of sedimentary rocks.