Soils Quiz

Living or alive at one time (plant/animal matter)

• inorganic

• organic

• humus

• clay

A layer of soil with properties different from the layers above or below it.

• Soil horizon

• Soil Profile

• humus

• soil

Mixture of weathered rock. organic material, water and air.

• humus

• silt

• soil

• sand

Visible without a microscope, gritty, holds little water

• silt

• sand

• clay

• humus

This type of material was never alive

• soil

• clay

• organic

• inorganic

The organic part of soil; forms when dead plants or animals decay

• sand

• humus

• silt

• soil

Not visible without a microscope, powdery when wet, holds more water than sand:

• clay

• humus

• soil

• silt

Not visible without a microscope, sticky, holds lots of water

• sand

• clay

• silt

• humus

This layer is made of partially weathered bedrock; no plant roots

• O

• A

• B

• C

• R

Tags

NGSS.MS-ESS2-2

This layer collects the dissolved substances and nutrients deposited from the upper horizons

• O

• A

• B

• C

• R

Tags

NGSS.MS-ESS2-1