Igneous Rock

When lava cools above the earth's crust, _______ rocks are formed.

• intrusive

• extrusive

Is this Intrusive or Extrusive?

• Intrusive

• Extrusive

Pumice is

• Extrusive

• Intrusive

Igneous rocks are often called volcanic rocks.

• True

• False

Intrusive Rocks Have...

• Lava

• Small Crystals

• Big Crystals

• Grass

Extrusive Rocks Are Formed By...

• Frying Pans

• Lava

• Grilling

• Baking

Extrusive Igneous Rocks Cool...

• Quickly

• Slowly

Magma Cools ____

• Slowly

• Quickly

Magma is melted rock ______ the earth's crust.

• above

• below

• in-between

How do extrusive igneous rocks form?

• from lava that erupted onto Earth's surface

• from magma that hardened beneath Earth's surface