Chapter 3: Rocks - Chapter Test

Front

Which of the following is true about rocks?

Back

Most rocks are a mixture of minerals.

Front

Which of the following is NOT one of the three types of rock? igneous, sedimentary, magma, metamorphic

Back

magma

Front

Metamorphic rock forms as a result of

Back

heat and pressure.

Front

All of the energy that drives Earth’s rock cycle comes from

Back

Earth’s interior and the sun.

Front

The rock cycle includes all of the steps EXCEPT which of the following?

• Magma or lava cools.
• Sediments melt deep beneath Earth’s surface.
• Extreme heat and pressure form metamorphic rocks.
• Rocks at Earth’s surface are broken down into smaller pieces.

Back

Sediments melt deep beneath Earth’s surface.

Front

A rock that forms when magma hardens beneath Earth’s surface is called an

Back

intrusive igneous rock.

Front

Example of an extrusive igneous rock: rhyolite, granite, andesite, coal

Back

rhyolite

Front

Lava that cools so quickly that ions do not have time to arrange themselves into crystals will form igneous rocks with a

Back

glassy texture.

Front

A certain igneous rock contains about 25 percent dark silicate minerals. The remainder of the rock is mostly plagioclase feldspar. What type of composition does this igneous rock have?

Back

andesitic

Front

A conglomerate is a rock that forms as a result of

Back

compaction and cementation.