Rock Cycle

Front

What process flattens mineral grains in rocks without melting them?

Back

Pressure

Front

What happens to volcanic glass rock (obsidian) as it cools?

Back

It cools so quickly that few crystals form.

Front

What type of rock is mostly found on the exposed surface of Earth?

Back

Sedimentary rock

Front

Which type of rock can be broken into fragments that may later form sedimentary rock?

Back

Igneous rock

Front

What type of igneous rock forms from magma cooling at or near Earth’s surface?

Back

Extrusive igneous rock

Front

What is the term for the process of rocks breaking down into smaller pieces?

Back

Weathering

Front

What is the term for the movement of sediment from one location to another?

Back

Erosion

Front

What type of rock forms from the cooling and solidification of magma?

Back

Igneous rock

Front

What is the main difference between intrusive and extrusive igneous rocks?

Back

Intrusive rocks form from magma that cools slowly beneath the surface, while extrusive rocks cool quickly at or near the surface.

Front

What type of rock is formed from the compression and cementation of sediments?

Back

Sedimentary rock