The Earth has not always been this way. It has taken a great length of time to produce the features that we now observe. In the distant future the Earth will appear different again because changes are continuously taking place. Scientists agree that the Earth formed from a large cloud of gas and dust. As the gases and dust cooled, the Earth developed, slowly forming a ball-shape with a solid surface. This surface is called the crust.
The solid materials of the crust are called ROCKS. The first rocks resulted from the cooling of molten material. These rocks are called ingenous rocks. Granite is one.
Here is a picture of Granite:
The solid materials of the crust are called ROCKS. The first rocks resulted from the cooling of molten material. These rocks are called ingenous rocks. Granite is one.
Here is a picture of Granite:
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