Erosion and Waterway Concepts

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Front

What is weathering?

Back

Weathering is the breaking down of rocks and minerals into smaller pieces by natural processes, such as temperature changes, water, and biological activity.

Front

What is an example of erosion but not weathering?

Back

A pebble being rolled along a riverbed.

Front

What is sedimentation?

Back

Sedimentation is the process by which particles settle out of a fluid, forming layers of sediment.

Front

What is deposition?

Back

Deposition is the geological process in which sediments, soil, and rocks are added to a landform or land mass.

Front

What is a delta?

Back

A delta is a landform that forms at the mouth of a river, where it meets a body of water, created by the deposition of sediment.

Front

What is beach reclamation?

Back

Beach reclamation is the process of adding new sand to a beach to combat erosion and restore its size.

Front

What can scientists learn by using seismographs?

Back

Scientists can learn about the motion of the ground during an earthquake.

Front

What is the role of seismographs in studying earthquakes?

Back

Seismographs measure and record the motion of the ground during an earthquake.

Front

What is the difference between erosion and weathering?

Back

Erosion involves the movement of soil and rock, while weathering is the breaking down of rocks without movement.