Weathering and Erosion

Front

What is weathering?

Back

Weathering is the process of breaking down rocks and minerals into smaller pieces by natural forces such as water, wind, and temperature changes.

Front

What is erosion?

Back

Erosion is the process of moving weathered rock and soil from one place to another, often by water, wind, or ice.

Front

How does water cause weathering?

Back

Water can weaken minerals in rocks, causing them to break apart. It can also freeze and thaw in cracks, which expands and breaks the rocks.

Front

What role do tree roots play in weathering?

Back

Tree roots can grow into cracks in rocks and, as they grow, they can break the rocks apart.

Front

What is an example of erosion caused by animals?

Back

Animals digging holes in the ground is an example of erosion.

Front

How do glaciers contribute to weathering?

Back

Glaciers can crush rocks as they move, which is a form of weathering.

Front

What happens when rocks are weathered?

Back

When rocks are weathered, they break down into smaller pieces, which can then be moved by erosion.

Front

Can weathering happen without erosion?

Back

Yes, weathering can occur without erosion. Weathering is the breaking down of rocks, while erosion is the movement of those broken pieces.

Front

What is one way water can erode land?

Back

Water can wash away soil and rocks from the shoreline, which is an example of erosion.

Front

What is freeze-thaw weathering?

Back

Freeze-thaw weathering occurs when water enters cracks in rocks, freezes, expands, and then thaws, causing the rocks to break apart.