ROCKS
The rocks you see around you – the mountains, canyons & riverbeds, are all made of minerals.
A rock is made up of 2 or more minerals.
Think of a chocolate chip cookie as a rock.
The cookie is made of flour, butter, sugar & chocolate.
The cookie is like a rock and the flour, butter, sugar & chocolate are like minerals.
You need minerals to make rocks, but you don’t need rocks to make minerals.
All rocks are made of minerals.
THE ROCK CYCLE
Rocks are constantly being formed, worn down and then formed again.
This is known as the Rock Cycle. It is like the water cycle but it takes a lot longer.
It takes thousands and millions of years for rocks to change.
Rocks are divided into 3 Types. They are classified by how they were formed.
MINERALS
A mineral is composed of the same substance throughout.
If you were to cut a mineral sample, it would look the same throughout.
There are about 3000 different minerals in the world.
Minerals are made of chemicals – either a single chemical or a combination of chemicals.
There are 103 known chemical elements. Minerals are sorted into 8 groups.
MINERALS
A mineral is composed of the same substance throughout.
If you were to cut a mineral sample, it would look the same throughout.
There are about 3000 different minerals in the world.
Minerals are made of chemicals – either a single chemical or a combination of chemicals.
There are 103 known chemical elements. Minerals are sorted into 8 groups.
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