Rock's

1. Earth's crust began as Molton Rock. 

2. In the beginning, all rocks were Igneous.

3. Volcanoes deliver igneous rocks to the surface.

4. Rock that forms underground is called intrusive. 

5. Rock that forms from from igneous rock fragments (sediments) are called sandstone. 

6. Sand that is formed into rock is called living things.

7. Layers of coal are formed from sandstorm.

8. Limestone is formed from volcanic rock

9. Rocks that have been changed since they first formed are called metamorphic

10. Limestone under great pressure turns to high formed rock.

11. When metamorphic rock reaches the surface, it weathers and becomes Lava