Earths Structures and Systems Vocab Flashcards

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Chemical Weathering

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Rocks and minerals are broken down due to chemical reactions between substances in rocks (such as limestone) and their interactions with rain or certain organisms.

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Physical Weathering

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Rocks and minerals physically break down into smaller pieces over time. Examples include the freezing and thawing of water, or the movement of wind and ice.

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Erosion

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The process by which soil, rocks, and other materials are worn away and moved to a new location by natural forces.

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Deposition

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The process where materials like soil, sand, and rocks are dropped and settled into a new location after being eroded away.

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Sinkhole

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A landform created by the wearing away of soil and limestone by groundwater.

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Delta

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A landform where sediment is deposited at the mouth of rivers and estuaries from upstream.

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Alluvial Fan

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An accumulation of sediment at the base of a V-shaped mountain.

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Peninsula

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A landform that is surrounded by water on three sides.

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Plateau

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A small mountain with its top eroded away to reveal a flat top.

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Glacier

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A landform created mostly of ice and rock.