Rocks

Sedimentary rocks form through...

• cooling

• heat and pressure

• melting

• lithification

Metamorphic rocks form through...

• cooling

• heat and pressure

• melting

• lithification

Igneous rocks that form from magma in the ground...

• Intrusive

• Extrusive

• Clastic

• Foliated

Igneous rocks that form from lava...

• Intrusive

• Extrusive

• Clastic

• Foliated

Because coal is formed from ancient dead plants and animals, it is considered...

• a clastic sedimentary rock

• an organic sedimentary rock

• intrusive igneous

• foliated metamorphic

Minerals are the building blocks for...

• rocks

• elements

• compounds

• mixtures

Which of the following is NOT a clastic sedimentary rock?

• Sandstone

• Conglomerate

• Obsidian

• Shale

Igneous rocks form in or out of the ground. One key way to identify this...

• Color (is it dark or light)

• Texture (are there crystals or air bubbles)

• If you have to dig down in the ground to find them

• Temperature (are they still warm)

Extrusive igneous rocks lack crystals because they...

• Cooled too quickly

• Cooled too slowly

• Didn't have enough quartz present

Metamorphic rock that displays a "banded" appearance.

• Foliated

• Nonfoliated