Weathering and Erosion

A river moves rocks by carrying them in its current.

• Weathering
• Erosion

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

• Weathering
• Erosion

Small pieces of sand are carried by the wind.

• Weathering
• Erosion

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

• Weathering
• Erosion

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

• Weathering
• Erosion

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

• Weathering
• Erosion

This type of weathering occurs when rock is physically broken down into smaller pieces of rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

The process by which water, ice, wind or gravity moves weathered rock and soil from one place to another.

• weathering
• erosion
• deposition
• dumptruck

This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

Weeds growing into the cracks in a sidewalk and the sidewalk begins to crumble is an example of:

• mechanical weathering
• chemical weathering