Igneous Rock Review

1) What landform creates igneous rocks?

• plateaus

• volcanoes

• deserts

• canyons

2) What do we call molten rock under the surface of the Earth?

• magma

• lava

• sediments

• crystals

4) Which type of igneous rock forms on the surface of the Earth or outside the volcano?

• intrusive

• extrusive

7) What is the outermost layer of the Earth called?

• crust

• mantle

• inner core

• outer core

11) If you find a black, shiny, smooth igneous rock, what is the name of it?

• pumice

• basalt

• granite

• obsidian

16) Check all descriptions that describe intrusive igneous rocks.

• forms outside the volcano

• forms inside the volcano

• has large crystals

• has holes

• cools fast

17) Check all descriptions that can describe extrusive igneous rocks.

• forms outside the volcano

• forms inside the volcano

• has holes

• cools fast

• cools slowly

18) What is the name of molten rock on the surface of the Earth or outside the volcano?

• magma

• lava

• sediments

• crystals

This igneous rock's large crystals indicate that it is...

• extrusive, and formed deep underground.

• intrusive, and formed near the surface.

• intrusive, and formed deep underground.

• extrusive, and formed near the surface.

Extrusive rocks have...

• small crystals because they cool slowly.

• small crystals because they cool quickly.

• large crystals because they cool slowly.

• large crystals because they cool quickly.