Soil

What are soils made from? Choose all the correct answers.

• minerals from rocks

• water

• air

• organic content

• magma

This pie chart shows the soil composition in general. What's A?

• Minerals

• organic content

• humus

• water

In a soil sample, where do the minerals come from?

• living things

• plants

• rocks

• water

Which soil component has the smallest particle?

• silt

• sand

• clay

Which type of soil is best for gardening?

• sandy

• loam

• clay

Which type of soil used for pottery?

• loam

• clay

• sand

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

• sand
• silt
• clay
• loam

This type of soil is made of tiny pieces of rock. 

• sand
• clay
• humus
• loam

Which of the following types of soil has the largest particles?

• sand
• silt
• humus
• clay

The aeration of sand soil is ...............

• good

• bad

• medium