Lewis Landforms lessons 5-8

Front

What is erosion?

Back

Erosion is the process where soil and rock are removed from one location and transported to another by natural forces such as wind or water.

Front

What causes erosion on hills?

Back

Erosion on hills is often caused by water runoff, wind, and human activities like walking or playing, which can wear away the soil.

Front

What is physical weathering?

Back

Physical weathering is the breaking down of rocks and minerals into smaller pieces without changing their chemical composition.

Front

What is chemical weathering?

Back

Chemical weathering involves the chemical alteration of minerals in rocks, often due to reactions with water, acids, or gases.

Front

What is deposition?

Back

Deposition is the process where materials that have been eroded are dropped off in a new location, forming new landforms.

Front

How does rain contribute to erosion?

Back

Rain can wash away soil from hillsides, leading to erosion by carrying the soil down to lower areas.

Front

What is an example of erosion caused by wind?

Back

An example of erosion caused by wind is when strong winds blow away loose sand or soil from a surface.

Front

What landform was created by erosion over time?

Back

The Grand Canyon was formed by erosion from the Colorado River cutting through rock over millions of years.

Front

Where is erosion most likely to occur on a playground?

Back

Erosion is most likely to occur on hills where students walk, as their movement can wear away the grass and soil.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breaking down of rocks, while erosion is the movement of those broken pieces from one place to another.