Rocks and Soil

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

• Igneous

• Sedimentary

• Metamorphic

• Granite

Sedimentary rocks are made from...

• Heat and Pressure

• Sediments

• Magma cooling

Igneous rocks are made from...

• Heat and pressure

• Sediments

• Magma cooling

Metamorphic rocks are made from...

• Heat and pressure

• Sediments

• Magma cooling

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

Which of the following best describes soil erosion?

• The breakdown of soil

• The improvement of soil

• The changing of soil

• The movement of soil by wind or water

What is soil made of?

• Weathered rocks and minerals

• Dead plants and animals

• Air and water

• All of the above

The topsoil contains the humus and is the soil layer best for growing plants.

• True

• False

Which rock would you make a statue out of?

• Chalk

• Granite

• Marble

• Limestone

What type of rock is granite?

• igneous

• metamorphic

• sedimentary