Grade 4 Changing Earth Review

Front

What is erosion?

Back

Erosion is the moving away of rocks and soil by wind, water, or glaciers.

Front

What can be an effect of a sandstorm?

Back

Sand moving to a new location, creating dunes.

Front

What are the layers of the Earth from the outermost to the innermost?

Back

Crust, Mantle, Outer Core, Inner Core.

Front

True or false: Metamorphic rocks are usually found closer to Earth's surface.

Back

False.

Front

If igneous and sedimentary rocks are found near a mountain, what can you infer?

Back

The mountain was once a volcano, lava hardened to form the igneous rocks, and the igneous rocks were broken down into sediment.

Front

What is the definition of sedimentary rock?

Back

Sedimentary rock is formed from particles of sand, shells, pebbles, and other fragments of material.

Front

What is the process of weathering?

Back

Weathering is the breaking down of rocks into smaller pieces by natural forces.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks are formed from cooled magma or lava, while sedimentary rocks are formed from compressed sediments.

Front

What is a sand dune?

Back

A sand dune is a hill of sand formed by the wind.

Front

What causes a landslide?

Back

A landslide is caused by gravity pulling rocks and soil down a slope.