Soil

Name the process by which rocks are broken down into small grains and soil.

• weathering

• erosion

• heat

• pressure

Name the process in which water, ice, wind, or gravity moves pieces of rock and soil.

• weathering

• erosion

• heat

• pressure

What are the ingredients of soil?

• sand, silt, clay

• water and organic matter

• mineral matter, air, water, and organic matter

• organic and mineral matter

Why is soil important?

• It is good to walk on.

• It covers the ground.

• It is fun to play in.

• Everything connects back to the soil. We use things that come from soil.

Which two ingredients each make up 25% of soil?

• air

• organic matter

• water

• mineral matter

Which ingredient makes up 45% of soil?

• air

• mineral matter

• water

• organic matter

Which ingredient makes up 5% of soil?

• air

• mineral matter

• water

• organic matter

Which part of soil is gritty, has a lot of air pockets, and allows water to travel through it quickly?

• sand

• silt

• clay

Which part of soil feels smooth, has some air pockets, and lets water flow through it steadily?

• sand

• silt

• clay

Which part of soil feels sticky when wet, has very few air pockets, and makes water flow through it slowly?

• sand

• silt

• clay