Types of Rocks Review

Which type of rock will have ribbon-like layers?

• igneous

• metamorphic

• sedimentary

Rocks that are foliated have ___________.

• tiny holes made from gas bubbles

• a glassy texture

• shiny crystals

• layers

What causes igneous rock to have tiny holes (vesicular texture)?

• cementing of sediment

• pressure that makes layers

• gas bubbles that were trapped in lava as it cooled

This is Pumice. This is an __________ igneous rock because it cooled very quickly and produced holes.

• intrusive

• extrusive

This is Gabbro. This is an _________________ igneous rock because the big mineral grains show that it cooled very slowly.

• intrusive

• extrusive

How are rocks classified?

• Based on how they are formed

• What color they are

• What they are shaped like

• Where they are found

Rocks that have minerals that are too small to see are called ______ grained.

• fine

• coarse

What makes holes and a glass-like look to igneous rocks?

• magma cooling quickly inside the earth

• compacting of sediment

• lava cooling quickly on the surface of the earth

What is the source of energy for metamorphic and igneous rocks?

• Water

• sun

• heat from inside the Earth

• erosion

Tags

NGSS.MS-PS1-4

Which type of rock most likely contains fossils?

• sedimentary

• igneous

• metamorphic

• all of the above

Tags

NGSS.MS-ESS2-3