Soil Quiz

What is soil made of?

• Just water

• Rock, organic material, gases, and water

• Only plants and animals

• Plastic and metal

What process breaks rocks into small pieces to form soil?

• Freezing

• Weathering

• Boiling

• Cutting

Why is soil important for plants?

• It provides light

• It provides support and nutrients

• It provides heat

• It provides color

What happens when plants and animals die?

• They disappear completely

• They become rocks

• Their bodies mix with the soil and add organic materials to it

• They turn into water

Who lives in the soil?

• Fish and birds

• Cats and dogs

• Worms and insects

• Lions and elephants

What are the main layers of the soil?

• Clay, sand, and gravel

• Topsoil, subsoil, and bedrock

• Humus, peat, and loam

• Silt, clay, and organic matter

What is another name for topsoil?

• Bedrock layer

• Humus layer

• Subsoil layer

• Mineral layer

Which layer of soil is rich in minerals and metal salts?

• Topsoil

• Subsoil

• Bedrock

• Humus layer

What does the bedrock layer contain?

• Organic matter

• Seeds and roots

• Stones and rocks

• Minerals and metal salts

Which layer of soil takes the longest to form?

• Topsoil

• Subsoil

• Bedrock

• Humus layer