Soil Review

What living things are in soil?

• earthworms
• sand
• glass
• minerals

The dark top layer of soil is called ______.

• subsoil
• bedrock
• topsoil
• understory

What does humus contain?

• sand
• glass
• clay
• decayed plants and animals

Tags

NGSS.MS-LS2-1

The layer of soil just under the topsoil is called _______.

• humus
• clay
• subsoil
• rock

Under the subsoil layer is a layer of rock called _______.

• bedrock
• soil
• topsoil
• loam

Tags

NGSS.MS-ESS1-4

Which of the following best describes soil erosion?

• A.  the breakdown of soil 
• A.  the improvement of soil
• A.  the addition of soil
• A.  the movement of soil by wind or water

Tags

NGSS.MS-ESS2-2

Which of the following is the largest particle in soil?

• sand
• silt
• humus
• clay

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Where does most of the water go when it rains?

• in the ocean
• in the rivers
• in the gutters
• it absorbs into the soil

Tags

NGSS.MS-ESS2-4

The breaking down of rocks into smaller pieces.

• erosion
• weathering
• sediment
• sand