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How Rocks Are Formed

Published on Nov 21, 2015

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PRESENTATION OUTLINE

1.

HOW ARE ROCKS FORMED?

BY: ADAM STILES
2.

THESE LITTLE BITS ARE WASHED DOWNSTREAM.

Photo by Diriye Amey
3.

SEDIMENTARY ROCK

LITTE PIECES OF THE EARTH ARE WORN AWAY BY WIND AND WATER.
4.

HOW AE ROCKS FORMED?

BY: ADAM STILES
5.

LAYER AFTER LAYER OF ERODED EARTH IS DEPOSITED ON TOP OF EACH.

6.

THESE LAYERS ARE PRESSED DOWN UNTIL THEY TURN INTO ROCK

7.

METAMORPHIC ROCKS

ARE ROCKS THAT HAVE MORPHED INTO ANOTHER TYPE OF ROCK.
8.

THEY GO THROUGH TONS OF PRESSURE, WHICH FOSTERS HEAT BUILDING.

Photo by Fool-On-The-Hill
9.

IGNEOUS ROCKS

ARE CALLED FIRE ROCKS THAT FORM UNDERGROUND OR ABOVE GROUND.
10.

UNDERGROUND, THEY FORM WHEN MAGMA SLOWLY COOLS AND HARDENS.

11.

THEY ALSO FORM WHEN VOLCANOS ERUPT AND MAGMA RISES.

12.

THEY ARE ALSO FORMED AS LAVA COOLS ABOUT GROUND.

Photo by gnuckx

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