Igneous Rocks

Igneous rocks are grouped based on

• Origin

• Texture

• Mineral Composition

• All of the Above

An igneous rock formed from lava that erupted from a volcano and on to the Earth's crust is a...

• Extrusive Igneous Rock

• Intrusive Igneous Rock

An igneous rock formed when magma hardens beneath the surface of Earth is a...

• Extrusive Igneous Rock

• Intrusive Igneous Rock

Extrusive Rocks have fine-grained or glassy texture

• True

• False

Extrusive Rocks have large grains.

• True

• False

Extrusive rocks are made from...

• Lava

• Magma

Intrusive Rocks are made from...

• Lava

• Magma

Which igneous rock is dark in color?

• Extrusive Igneous Rock

• Intrusive Igneous Rock

Which igneous rock is light in color?

• Extrusive Igneous Rock

• Intrusive Igneous Rock

Which is an example of an extrusive igneous rock?

• Granite

• Basalt