Changes to the Earth's Surface

Features on the surface of the Earth such as mountains, hills, dunes, oceans, and rivers:

• delta

• erosion

• landform

The movement of weathered material on the Earth’s surface by wind, water and ice:

• erosion

• deposition

• landslides

A sudden release of energy under the Earth’s surface that makes the ground shake or crack:

• weathering

• earthquake

• landform

The breakdown of rock into smaller pieces from the effects of wind, water and ice:

• deposition

• delta

• weathering

The buildup of land by depositing sediment and soil in a new location:

• earthquake

• weather

• deposition

A triangle-shaped (deposit) landform at the mouth of a river as it empties into a body of water:

• weather

• delta

• landform

When a river flows over the Earth and cuts through the surface it makes a:

• hill

• mountain

• canyon

A delta forms when the river meets the ocean because:

• the river is colder than the ocean

• the river slows down and drops sediments

• the earth builds up pressure in the river

What natural force formed the Grand Canyon millions of years ago?

• a landslide

• an earthquake

• a river

What is necessary for sand dunes to form?

• loose sand (sediment) and strong wind

• pressure in the earth

• ice glaciers