Cooking up the 3 types of rock....

We looked at how the 3 different types of rock are formed.

1) Igneous Rock

This is when lots of rocks ate heated to such a high temperature that they melt and mix. When they cool, they have formed a very different type of rock.

2) Sedimentary Rocks 

This is when layers of dust, sand, decaying plants, bones and clay settle in layers one on top of another. They are then sandwiched together.

3) Metamorphic Rock

This happens in 2 ways. Fist it is when Sedimentary is put under a lot of pressure squashing it.

2) Another way is to heat it a little bit. This makes some of the layers melt and ooze out.