4th grade Weathering, Erosion, Deposition

Front

What is weathering?

Back

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

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another by natural agents like water, wind, or ice.

Front

What is deposition?

Back

Deposition is the process where sediments, soil, and rocks are added to a landform or land mass, often occurring when the transporting medium loses energy.

Front

What natural agent causes erosion in rivers?

Back

Flowing water is a natural agent that causes erosion in rivers, shaping the landscape as it moves.

Front

What is a delta?

Back

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

Front

What is a U-shaped valley?

Back

A U-shaped valley is a valley formed by the erosion of a glacier, characterized by its wide, flat bottom and steep sides.

Front

How does ice cause weathering?

Back

Ice causes weathering through a process called freeze-thaw, where water seeps into cracks, freezes, expands, and breaks the rock apart.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks in place, while erosion involves the movement of those broken materials to a new location.

Front

What role does wind play in erosion?

Back

Wind can erode surfaces by carrying away loose particles, especially in dry and sandy environments.

Front

What is an example of deposition?

Back

An example of deposition is when a river slows down and drops off sediment, forming a sandbar.