Weathering and Erosion

Water freezes in a crack in an asphalt street and a pothole begins to form.

• Weathering
• Erosion

A river moves rocks by carrying them in its current.

• Weathering
• Erosion

Water dissolves part of a rock, making an underground cave.

• Weathering
• Erosion

Small pieces of sand are carried by the wind.

• Weathering
• Erosion

Water washes rocks and soils down slopes, causing a mudslide.

• Weathering
• Erosion

Boulders beside a river become smaller as water wears them away.

• Weathering
• Erosion

Ocean waves tear sand away from a beach.

• Weathering
• Erosion

Rain washes soil from hills and fields into rivers.

• Weathering
• Erosion

Rocks and pebbles in a river become smooth as they smash into other rocks.

• Weathering
• Erosion

The roots of a tree break apart rocks beneath the soil.

• Weathering
• Erosion