Social Science Unit 4

Where do we get minerals and rocks from?

• Space

• The Earth's Crust

• The Ocean

What are the three main types of rock?

• Igneous

• Sedimentary

• Mechanic

• Metamorphic

What do we need rock for?

• Nothing

• Cosmetics

• Glass

• Plastics

How do metamorphic rocks form?

• They form when there are movements in the inner layers.

• When melted rock from a volcano cools down.

• Formed from rocks, dead vegetation and animal matter

How is Igneous Rock formed?

• Formed when heat or pressure act on other rocks.

• Formed when melted rock from a volcano cools down.

• Formed from rocks, dead vegetation and animal matter

How is Sedimentary rock formed?

• Formed when heat or pressure act on other rocks.

• Formed when melted rock from a volcano cools down.

• Formed from rocks, dead vegetation and animal matter

All the rocks and minerals on the Earth are called the...

• Hydrosphere

• Lithosphere

Minerals are always hard and shiny.

• True

• False (CAN be hard or soft and shiny or dull.)

Minerals can exist in crystal form, but sometimes the crystals aren’t visible.

• True

• False

Igneous rock is found...

• deep inside the Earth

• on the Earth’s surface/on the bottom of lakes and oceans