Download Igneous Rocks—formed when magma or lava cools or hardens

Igneous Rocks—formed when magma or lava cools or hardens
Magma—Molten rock material INSIDE Earth.
Lava—Molten rock material that reaches Earth’s surface.
Intrusive
-Form as magma cools and
hardens slowly
-Beneath Earth’s surface.
-Found at surface after erosion
(rocks pushed up by forces).
-Coarse grained (larger;crystals
have time to form)
Extrusive
-Igneous Rocks
-Formed from
magma, or
volcanoes.
-Classified by
mineral
composition,
or grain size.
-Forms as lava cools and hardens
rapidly.
-At/above Earth’s surface
-Exposure to air and water
-Fine grained (small; no time for
crystals to form).