Week 18 FINAL - Earth Science

Which type of rock is formed from the solidification of magma or lava?

• igneous

• sedimentary

• metamorphic

• bioclastic

Where is magma located?

• above ground

• below ground

• in the stratosphere

• in the thermosphere

Where is lava located?

• above ground

• below ground

• in the core

• in the mantle

Describe the texture of the following igneous rock.

• smooth

• coarse

• vesicular

• glassy

Describe the environment of formation for the following igneous rock.

• intrusive

• extrusive

Describe the rate of cooling for the following igneous rock.

• slow cooling

• rapid cooling

Describe the environment of formation for the following igneous rock (grain size 1-10 mm).

• above ground

• below ground

An igneous rock that is formed from lava is called an

• Extrusive

• Intrusive

Basalt is an extrusive igneous rock. What does this tell you about it?

• it was formed from lava that erupted onto Earth's surface

• it was formed from slowly cooling magma

• it was formed from magma that hardened beneath Earth's surface

Describe the mineral composition of the following igneous rock. Light in color with high silica

• felsic

• mafic