Soil

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

• clay
• sand
• silt
• mud

Are there minerals in soil?

• Yes
• No

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?

• A.  the breakdown of soil 
• A.  the improvement of soil
• A.  the addition of soil
• A.  the movement of soil by wind or water

Which of the following best describes soil erosion?

• A.  the breakdown of soil 
• A.  the improvement of soil
• A.  the addition of soil
• A.  the movement of soil by wind or water

Water gets into the cracks of rock and freezes, causing the rock to break.  What is this an example of?

• erosion
• weathering

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Tags

NGSS.MS-ESS2-1

Physically breaking down rocks and materials is called__________weathering.

• Chemical
• Mechanical
• Biological
• Permeable

Soil formation begins with the weathering of_______.

• Humas
• Subsoil
• Litter
• Rock

Tags

NGSS.MS-ESS2-2

The layer of soil which the topsoil is found.

• Horizon A
• Horizon B
• Horizon C
• Horizon D or R