Timescale of Earth's Events

Front

What can cause fast changes to the Earth's surface?

Back

Water can cause fast changes to the Earth's surface.

Front

What can cause erosion?

Back

Water, wind, and ice can all cause erosion.

Front

How often is the surface of the Earth changing?

Back

The surface of the Earth is changing all the time in different places.

Front

What are very slow moving chunks of ice that change the Earth's surface?

Back

Glaciers are very slow moving chunks of ice that change the Earth's surface.

Front

How long did it take to form the Grand Canyon?

Back

It took many years to form the Grand Canyon.

Front

What is erosion?

Back

Erosion is the process by which natural forces move weathered rock and soil from one place to another.

Front

What is a glacier?

Back

A glacier is a large mass of ice that moves slowly over land.

Front

What is the main cause of erosion?

Back

Water is the main cause of erosion.

Front

What is the term for the breaking down of rocks?

Back

Weathering is the breaking down of rocks.

Front

What natural forces can change the Earth's surface?

Back

Water, wind, ice, and human activities can change the Earth's surface.