Rock and Minerals Vocabulary

Front

What is soil?

Back

Material from earth made up of bits of rocks, decayed matter, air, and water.

Front

What type of rock forms when other rocks are changed by heat and pressure deep inside the earth?

Back

Metamorphic rock.

Front

What type of rock forms when melted rock (lava or magma) cools above ground or underground?

Back

Igneous rock.

Front

What is a grain?

Back

A small part of a rock or soil.

Front

What is humus?

Back

Composed of bits of decayed plants and animals.

Front

What are minerals?

Back

Naturally occurring substances that make up rocks.

Front

What is sedimentary rock?

Back

Rock formed from particles of sand, shells, pebbles, and other fragments of material.

Front

What is the process of weathering?

Back

The breaking down of rocks and minerals by natural processes.

Front

What is erosion?

Back

The movement of weathered rock and soil from one location to another.

Front

What is magma?

Back

Melted rock located beneath the earth's surface.