5th Grade Geology Review

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What is erosion?

Back

Erosion is the process by which sediment is moved from one place to another by natural forces such as water or wind.

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How is a sedimentary rock formed?

Back

Sedimentary rock is formed from layers of sediment that compact and cement together over time.

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What is an igneous rock?

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Igneous rock is formed when magma or lava cools and hardens.

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What is the inner core of the Earth?

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The inner core is the densest layer of the Earth, composed mainly of iron and nickel.

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What is a metamorphic rock?

Back

Metamorphic rock is rock that changes due to extreme heat and pressure.

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What is sediment?

Back

Sediment is small particles of rock, minerals, or organic material that can be transported by wind, water, or ice.

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What is the rock cycle?

Back

The rock cycle is the continuous process of rock formation, breakdown, and reformation, involving igneous, sedimentary, and metamorphic rocks.

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What is compaction in geology?

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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 crystallize and bind sediment particles together.

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What are fossils?

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Fossils are the preserved remains or traces of ancient organisms found in sedimentary rocks.