Rock Type A: Igneous Rocks

what type of rocks make up most of the earth's crust?

• igneous

• metamorphic

• sedimentary

igneous rocks are associated with 

• volcanic eruptions

• earthquakes

• erosion

the cooling of lava on the earths surface forms what type of igneous rock?

• extrusive 

• intrusive

• metamophic

when igneous rocks form inside the earth they are called 

• intrusive

• extrusive

• sedimentary

what is different about intrusive and extrusive igneous rock's appearance?

• crystal size

• mineral color

• density