4th Grade Science Review

Front

What is weathering?

Back

Weathering is the breaking down of rock into smaller pieces called sediment.

Front

What is erosion?

Back

Erosion is the movement of sediment from one place to another.

Tags

NGSS.MS-ESS2-2

Front

What is deposition?

Back

Deposition is the dropping off of sediments in a new place.

Front

What type of changes are weathering, erosion, and deposition?

Back

They are examples of slow changes in the Earth's surface.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Front

What is sediment?

Back

Sediment is bits of rock, sand, and silt caused by the weathering of rocks.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks, while erosion moves the broken pieces (sediment) to new locations.

Front

Can weathering happen quickly?

Back

No, weathering is generally a slow process.

Front

What are some examples of weathering?

Back

Examples include freeze-thaw cycles, plant roots breaking rocks, and chemical reactions.

Front

What role does water play in erosion?

Back

Water can carry sediment away, causing erosion as it flows over land.

Tags

NGSS.MS-ESS2-2

Front

How does wind contribute to erosion?

Back

Wind can pick up and transport small particles of sediment over long distances.