Rocks

Front

What is a mineral?

Back

A naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms.

Front

Are minerals always organic substances?

Back

False

Front

What causes the different colors of rocks?

Back

The minerals, impurities, and chemical composition in the rock.

Front

What is the difference between coarse-grained, medium-grained, and fine-grained rocks?

Back

Coarse-grained rocks have larger mineral grains, medium-grained rocks have medium-sized grains, and fine-grained rocks have smaller grains.

Front

What is luster in minerals?

Back

The way light interacts with the surface of a mineral.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is an igneous rock?

Back

A rock formed from cooled and solidified magma or lava.

Front

What is a sedimentary rock?

Back

A rock formed from the accumulation and compaction of mineral and organic particles.

Front

What is a metamorphic rock?

Back

A rock that has been changed from its original form by heat, pressure, or chemical processes.

Front

What is the rock cycle?

Back

The continuous process of rock formation and transformation between igneous, sedimentary, and metamorphic rocks.