Soil and Erosion

What are the two main causes of erosion and weathering?

• wind and heat

• heat and cold

• wind and water

• water and fire

Tags

NGSS.MS-ESS2-2

What most likely caused this weathering?

• wind

• water

• ice

• people

Tags

NGSS.MS-ESS2-2

Which soil retains the most water?

• Clay

• Sand

• Loam

• Dirt

Which soil has the smallest particles?

• dirt

• sand

• clay

• loam

Which of these can help PREVENT soil erosion?

• construction sites

• planting grass

• raising grazing animals

• digging ditches

What is soil erosion?

• The process of soil formation

• The addition of nutrients to the soil

• The removal of the topsoil layer by wind or water

• The process of breaking down organic matter in soil

Tags

NGSS.MS-ESS2-2

Which of the following DOES not contribute to soil erosion?

• Plowing

• Overgrazing

• Deforestation

• Composting

Tags

NGSS.MS-ESS3-4

Controlling erosion is a way farmers can help maintain the soil.

• True

• False

Tags

NGSS.MS-LS2-5

In a drought, farmers often have problems with their topsoil blowing away when it gets really dry. What could farmers do to keep the lightweight, dry soil from blowing away or eroding?

• Plant the seeds farther apart.

• Surround the fields with natural barriers, such as trees to block the wind.

• Keep cows in the field.

Skylar notices some erosion taking place on the hillside next to her home. What could she do to prevent further erosion?

• She could add moisture to the ground by installing a sprinkler system.

• She could plant trees. The roots will help hold the soil and rocks in place.

• She could build a road. The asphalt will hold the soil and rocks in place.

• She could build a ditch going down the mountain to add more water to the hillside.

Tags

NGSS.MS-ETS1-3