Igneous Rock
Magma
Hot molten located beneath earths surface
Lava
When magma reaches surface
Extrusive Rock
Lava that cools quickly have small crystals. It traps air forming holes, making it light.
Intrusive Rock
Magma that cools slowly have large crystals.
Color
Can inform us where it was formed. Mafic is dark, Felsic are light.