The Rock Cycle

How do geologists classify rocks?

• according to how dense they are

• according to how they were made

• according to how heavy they are

The hot liquid that comes out of a volcano is called

• iron

• magma

• lava

When lava or magma cools and solidifies, it forms

• a sedimentary rock

• an igneous rock

• a metamorphic rock

This occurs when rock particles or sediments are PRESSED TOGETHER by gravity and the pressure of overlying rock layers.

• compaction

• cementation

• solidification

The process of extreme heat and pressure creates which type of rock?

• sedimentary

• igneous

• metamorphic

This type of rock forms in areas where tiny sediments get deposited.

• sedimentary

• igneous

• metamorphic

Igneous rocks are formed by

• extreme heat and pressure

• crystallization and solidification

• compaction and cementation

Different minerals and sediments in rock form

• air bubbles

• different colors of layers

• crystals

Tags

NGSS.MS-ESS1-4

An igneous rock might show that there was a ___________ nearby.

• volcano

• canyon

• ocean

Tags

NGSS.MS-ESS3-2

The final process in the formation of sedimentary rock is

• cementation

• compaction

• solidification