Soil

Which type of soil can hold the greatest amount of water?

• sand
• silt
• clay
• loam

Wind blowing dirt and sand through the air is an example of...

• weathering 
• erosion

Water gets into the cracks of rock and freezes, causing the rock to break.  What is this an example of?

• erosion
• weathering

Soil is made of

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

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Which of the following is NOT one of the three layers of soil?

• topsoil
• undersoil
• subsoil
• bedrock

Which layer of soil has the BIGGEST pieces of rock in it?

• topsoil
• subsoil
• bedrock
• midsoil

Are there minerals in soil?

• Yes
• No

Humus is.....

• the dead parts of plants and animals in soil.
• A food we eat with pretzels.
• The tiny particles inside of soil
• The roots that come off of a plant and live in soil.

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?

• sand
• silt
• clay
• humus