Front

How many types of rocks are there?

Back

3

Front

Rocks that are formed when magma or molten rock cools.

Back

Igneous

Front

The molten rock that cools inside the earth is called ______.

Back

Intrusive

Front

The molten rock that cools outside the earth is called _____

Back

Extrusive

Front

Obsidian is a ____________ rock.

Back

Igneous

Front

Basalt is a _____________ rock.

Back

Igneous

Front

Granite is a __________ rock.

Back

Igneous

Front

What rocks are formed from pre-existing rocks or pieces of once-living organisms?

Back

Sedimentary

Front

Clastic, chemical, and organic all form ________ rocks.

Back

Sedimentary

Front

Shale is a _______ rock.

Back

Sedimentary