Igneous Rock Review

Front

What type of crystals will a slow cooling igneous rock have?

Back

Large crystals.

Front

What do basalt, pumice, and obsidian have in common?

Back

They are all types of igneous rocks.

Front

What is the grain size of a fine-grained igneous rock?

Back

Fine grains.

Front

What type of grain size does an intrusive igneous rock have?

Back

Coarse-grained.

Front

What does it mean if a rock is mainly composed of granite?

Back

It formed below Earth's surface.

Front

What is the primary difference between intrusive and extrusive igneous rocks?

Back

Intrusive rocks form below the surface, while extrusive rocks form on the surface.

Front

What is the cooling rate of magma that leads to the formation of coarse-grained igneous rocks?

Back

Slow cooling.

Front

What is the texture of igneous rocks that cool quickly?

Back

Fine-grained texture.

Front

What is the significance of the mineral composition in igneous rocks?

Back

It determines the rock's color and properties.

Front

What is the process called when magma cools and solidifies?

Back

Crystallization.