Soil Test Review

Soil is made of

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

Tags

NGSS.MS-ESS2-1

What do we call the layers of soil?

• Deposits
• Horizons
• Minerals
• Rocks

The very top layer of soil is mostly made of

• Solid rock 
• Clay and mineral deposits
• A mixture of minerals and organic material
• Mostly organic material (humus)

What is soil?

• A mixture of minerals
• A mixture of water, minerals, gases and organic matter
• A type of rock
• A type of bacteria

Tags

NGSS.MS-LS2-3

There is an unlimited supply of fertile soil.

• True
• False

Tags

NGSS.MS-LS2-1

Which of the following is the largest particle in soil?

• sand
• silt
• humus
• clay

_______ is the type of soil used most often with plants and on farms. It is a mixture of clay, sand, and silt.

• loam
• humus
• soil
• dirt

Tags

NGSS.4-ESS2-1

Reorder the following so that the soil particle sizes are Biggest to Smallest

• Sand

• Clay

• Silt

What is the smallest size mineral particle?

The texture of soil depends mainly on ---

• the types of plants that grow in the soil.

• the size of the particles in the soil.

• the color of the soil.

• the number of worms in the soil.