STORY IN THE ROCKSCREATED BY

JACOB FISHERBETSY BUTCHERMARIA DEITERS

EROSION The main elements of erosion

are: water, wind, gravity, and

glaciers. Eroded material can slide downhill because of gravity and the

natural elements. Sheet Erosion is when a small sheet of sediment erodes from the side of base rock.

WEATHERING Weathering is when eroded bits of rock are

moved from the original rock. Chemical weathering is when chemicals and acids erode away the surface of a rock, and physical weathering is when natural elements erode the rock. The grand canyon was formed by weathering and is very beautiful.

IGNEOUS ROCKS Igneous rocks are formed when magma from the earth cools inside or outside the volcano.

METAMORPHIC ROCKS Rocks that are formed from

other rocks put under extreme heat and pressure under the earths surface.

SEDIMENTARY ROCKS

Sedimentary rock is formed from sediments being cemented together.

FOSSILSFossils are the remains or imprints of

once living organism that are preserved in or an the surface

of a rock

ROCK CYCLE

GEOLOGIC

TIME SCALE

LAW OF SUPERPOSITION

The Geologic Time scale is how you can measure the age of rocks by comparing them to the surrounding rocks

END OF STORY