Rocks Review

What type of rock is formed from a volcano?

• metamorphic

• sedimentary

• igneous

Granite is an igneous rock. Which statement is most likely true about the formation of granite?

• Granite is formed when molten magma is cooled.

• Granite is formed from other rocks subjected to heat and pressure.

• Granite is formed underwater in lakes.

• Granite is formed by long periods of weathering and erosion.

What forms when sediment compacts and cements together at the bottom of oceans, lakes, and rivers?

• Metamorphic rock

• Sedimentary rock

• Igneous rock

Metamorphic rock forms due to

• erosion of rocks

• cooling and solidification of molten magma

• compression and cementation of soil particles

• heat and pressure being applied to other rocks

Does lava form above or below Earth's surface?

• above

• below

Does magma form above or below Earth's surface?

• above

• below

Extrusive igneous rock has _____ crystals or holes from trapped air.

• small

• large

Intrusive igneous rocks have _____ crystals and no holes from trapped air.

• small

• large

What rock type is made of compacted sediments?

• Igneous

• Metamorphic

• Sedimentary

Metamorphic rocks are formed from existing rocks that are subjected to extreme

• erosion and weathering

• heat and pressure

• melting and cooling