Specific Rocks

Front

What is a metamorphic rock?

Back

A rock that forms from another rock as a result of changes in heat or pressure (or both).

Front

What type of rock is basalt?

Back

Basalt is an extrusive igneous rock.

Front

Why does obsidian have a glassy texture?

Back

Obsidian has a glassy texture because it cooled rapidly.

Front

What type of rock is shale?

Back

Shale is a clastic sedimentary rock.

Front

What type of rock is obsidian?

Back

Obsidian is an extrusive igneous rock.

Front

What is an igneous rock?

Back

A rock that forms from the cooling and solidification of magma or lava.

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 sedimentary rock?

Back

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

Front

What is a clastic sedimentary rock?

Back

A sedimentary rock that is composed of fragments of pre-existing rocks.

Front

What is a chemical sedimentary rock?

Back

A sedimentary rock that forms from the precipitation of minerals from water.