Exploring Earth's Water and Surface Changes

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What is erosion?

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Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as wind, water, and ice, and transported to another location.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

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What is weathering?

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Weathering is the process that breaks down rocks into smaller pieces due to exposure to natural elements like water, air, and temperature changes.

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NGSS.MS-ESS2-2

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How does gravity influence the water cycle?

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Gravity pulls water back to Earth's surface as precipitation, allowing the water cycle to continue.

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NGSS.MS-ESS2-4

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What is the water cycle?

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The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes like evaporation, condensation, and precipitation.

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NGSS.MS-ESS2-4

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What happens to water molecules when heated?

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When water molecules are heated, they move faster and spread apart, leading to evaporation.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

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What is sediment?

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Sediment refers to small particles of rock and soil that are transported by wind, water, or ice and can accumulate in layers.

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What is deposition?

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Deposition is the process by which sediments are laid down in new locations, often forming new landforms.

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NGSS.MS-ESS2-2

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What role does the sun play in the water cycle?

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The sun provides the heat necessary for evaporation, which is a key phase in the water cycle.

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NGSS.MS-ESS2-4

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What is the difference between erosion and weathering?

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Erosion involves the movement of materials from one place to another, while weathering is the breaking down of rocks without movement.

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What is an example of mechanical weathering?

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An example of mechanical weathering is water freezing in the cracks of rocks, causing them to break apart.