Volcano, Earthquake, Rocks, and Minerals Review

Front

What type of rock is formed from cooled lava?

Back

Extrusive igneous rock.

Front

What is the term for the color of a mineral in its powdered form?

Back

Streak.

Front

When a mineral is described as 'metallic', what property is being referred to?

Back

Luster.

Front

What type of rock forms under high temperature and pressure without melting?

Back

Metamorphic rock.

Front

What type of rock is made from pieces of rocks, minerals, plants, and animal remains that have been pressed or cemented together?

Back

Sedimentary rock.

Front

What is the process called when molten rock cools and solidifies?

Back

Crystallization.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.

Front

What is the Mohs scale used for?

Back

To measure the hardness of minerals.

Front

What is the term for the layering that occurs in sedimentary rocks?

Back

Stratification.

Front

What is a mineral's ability to break along flat surfaces called?

Back

Cleavage.