C 1.5 - Rocks and their formation

Igneous Rocks

Rocks deep inside the Earth may become hot enough to partially melt. Molten rock is called magma. It may stay inside the Earth, or it may erupt onto the surface as lava. When molten rock cools down it solidifies and becomes solid rock. Rocks formed this way are called IGNEOUS ROCKS

There crystals interlock.

The size of the crystals depends on the rate at which the magma or lava cools

Sedimentary Rocks

Rock that …