Rocks and Minerals Review

Front

What are rocks sorted by?

Back

Rocks are sorted by how they are formed.

Front

What is the outer solid layer of the earth called?

Back

The outer solid layer of the earth is called the crust.

Front

Which layer of the earth is liquid and where magma comes from?

Back

The layer of the earth that is liquid and where magma comes from is the mantle.

Front

What are obsidian, pumice, and granite examples of?

Back

Obsidian, pumice, and granite are all examples of igneous rocks.

Front

What is it called when a rock is changed into a different type?

Back

When a rock is changed into a different type, it is called a metamorphic rock.

Front

What are the three main types of rocks?

Back

The three main types of rocks are igneous, sedimentary, and metamorphic.

Front

What is an igneous rock?

Back

An igneous rock is formed from the cooling and solidification of magma or lava.

Front

What is a sedimentary rock?

Back

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

Front

What is a metamorphic rock?

Back

A metamorphic rock is formed when an existing rock is changed by heat, pressure, or chemical processes.

Front

What is the process of rock formation called?

Back

The process of rock formation is called the rock cycle.