Rocks!!

Rock Types

100

This rock is made by cooling lava.

Igneous

200

This rock needs heat and pressure to form.

Metamorphic

300

This rock is made at the bottom of lakes rivers and oceans.

Sedimentary

400

This rock is formed deep in the earth.

Metamorphic

500

There are over 700 of this type of rock.

Igneous

What's it used for?

100

This rock is used to run trains and heat homes.

Coal

200

New Hampshire is the _____ state

Granite

300

This rock is often used as counter tops in your home.

Marble

400

This rock was used to make arrow tips.

obsidian