Types of Rocks Brainpop

Front

What are the three main types of rocks?

Back

Sedimentary, Igneous, Metamorphic.

Front

What is sedimentary rock?

Back

Rocks formed from the accumulation of sediments, often layered.

Front

What is igneous rock?

Back

Rocks formed from the cooling and solidification of magma or lava.

Front

What is metamorphic rock?

Back

Rocks that have been changed from their original form due to heat and pressure.

Front

How are extrusive igneous rocks formed?

Back

They form when lava cools quickly on the Earth's surface.

Front

How are intrusive igneous rocks formed?

Back

They form when magma cools slowly beneath the Earth's surface.

Front

What is the role of pressure in rock formation?

Back

Pressure can change existing rocks into metamorphic rocks.

Front

What happens to magma when it reaches the surface?

Back

It is called lava.

Front

What is an example of metamorphosis in nature?

Back

A caterpillar changing into a butterfly.

Front

What is the difference between magma and lava?

Back

Magma is underground; lava is magma that has reached the surface.