Day 1: Review

True or False: Dirt and soil are the same thing.

• True

• False

Soil is made of ______.

• Pieces of rock

• minerals

• humus

• all of the above

Which organism does not live in the soil?

• Worms

• fungi

• butterflies

• moles

Plants need the _____ in the soil to grow.

• Nutrients

• rocks

• water

• both nutrients and water

Soil layers are called _____.

• Zones

• horizons

• humus

• bedrock

Horizon A is also called _____.

• topsoil

• subsoil

• parent material

• bedrock

Why is horizon C called parent material?

• It is the top layer of soil

• it takes the longest to form

• The upper layers form from it

• it is made of large rocks

True or False: Soil forms very quickly

• True

• False

What does it mean for something to disintegrate?

• to disappear

• to break down into small pieces

• to grow larger

• to take a long time to form

Soil differs from place to place because of _____.

• topography

• climate

• animal activity

• all of the above