Rocks 6th

Formed by heat and pressure

• Sedimentary

• Metamorphic

• Extrusive Igneous

• Intrusive Igneous

Formed by compacting & cementing of sediments

• Sedimentary

• Metamorphic

• Extrusive Igneous

• Intrusive Igneous

Has large crystals because of slow cooling of magma within the earth.

• sedimentary rock

• metamorphic rock

• intrusive igneous rock (magma)

• extrusive igneous rock (lava)

Has small or no crystals because of rapid cooling of lava on the surface.

• sedimentary rock

• metamorphic rock

• extrusive igneous rock (lava)

• intrusive igneous rock (magma)

Has banded layers or wavy appearance.

• sedimentary rock

• metamorphic rock

• extrusive igneous rock

• intrusive igneous rock

Which rocks contain fossils. 

• sedimentary rocks

• metamorphic rocks

• extrusive igneous rocks

• intrusive igneous rocks

If extreme heat inside the Earth causes a rock to melt, the material that formed would be...

• melting

• Magma

• Sediment

• lava

What are the three major groups of rocks?

• sedimentary, intrusive, and extrusive

• sedimentary, igneous and metamorphic

• metamorphic and sedimentary, and quartz

A rock formed from fragments of other rocks is a(n)

• Metamorphic Rock

• Sedimentary Rock

• Extrusive Rock

• Igneous Rock

The process by which igneous rocks are formed...

• heat and pressure

• melting and cooling

• weathering and erosion