Wind and rain break down rocks to change the physical shape and size.

Oxygen, acids, and carbon dioxide can react within the minerals in a rock and cause chemical changes.

Layers of soil formed over time

The transport of weathered rock is called __________.

Deposition

A natural features on Earth's surface is called a __________.

A deep, narrow valley with steep sides is called a __________.

Area of land formed by sediments at the mouth of a river

Rivers flowing downhill cut away at land to form a _______.

Wind blows sand into hills called _______.

Large, thick sheets of ice are called _________.