Soil & Rock Cycle

Front

Physically breaking down rocks and materials is called__________weathering.

Back

Mechanical

Front

A rock containing iron is soft, crumbly, reddish in color. It's been chemically weathered by__.

Back

Oxygen

Front

Soil formation begins with the weathering of_______?

Back

Rock

Front

The layer of soil in which most roots and tunneling worms are found.

Back

Topsoil

Front

The MAIN thing Decomposers do for the soil is:

Back

Break down and digest dead organisms

Front

What effect did over plowing and cutting down trees in the Great Plains during the 1930’s?

Back

It was a primary cause of the Dust Bowl.

Front

Decayed organic material in soil is called______.

Back

Humus

Front

The two main factors that determine the rate of weathering are the TYPE of rock and_____?

Back

Climate

Front

The movement of rocks and weathered materials is called_________.

Back

Erosion

Front

Which combination creates sand? Options: Rocks and ocean waves, Wind and ocean waves, Long waves and wind, surf and ocean waves

Back

Rocks and ocean waves