Soil

-What is the loose, upper layer of the Earth's surface where plants grow?

• clay

• sand

• silt

• soil

What is soil made of?

• minerals and rocks

• organic material and rocks and minerals

• organic material and topsoil

• humus and subsoil

What is the parent material of soil?

• clay

• silt

• the organic material that formed the rock

• the rock that the soil was formed from

Which one does not hold water well?

• clay

• humus

• sand

• soil

Which one holds water best?

• clay

• pebbles

• sand

• silt

What are the layers of soil called?

• horizons

• columns

• sheets

• areas

What is the layer of soil where plants and organisms live?

• bedrock

• parent material

• subsoil

• topsoil

The MAIN thing decomposers do for the the soil is

• Store moisture

• Burrow deep in the soil

• Make space for water

• Break down and digest dead organisms

Soil's one of the Earth’s most valuable resources. Everything on Earth depends on soil somehow.

• True
• False

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

• clay
• sand
• silt
• mud