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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.

How Sedimentary Rock Is Formed.
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For thousands, even millions of years, little pieces of our earth have been eroded--broken down and worn away
by wind and water. These little bits of our earth are washed downstream where they settle to the bottom of the rivers, lakes, and oceans. Layer after layer of eroded earth is deposited on top of each. These layers are pressed down more and more through time, until the bottom layers slowly turn into rock.