How it works
This wind erosion worksheet prints twelve terms down the left, among them deflation, abrasion, sediment, dune and windbreak, and their meanings in another order down the right, with an answer key. No diagram or map is on the sheet.
Read the full guide
Landforms the wind makes
Set opens on Wind erosion. Landforms the wind makes prints desert pavement, ventifact, yardang, blowout, barchan, star dune, parabolic dune, linear dune, slip face, ripples, sand sea and sand sheet.
Soil and saving it
The third set is the farm side of the unit: topsoil, silt, dust, drought, desertification, cover crop, no-till farming, strip cropping, sand fence, soil conservation, prevailing wind and Dust Bowl.
- Water, ice and gravity are left to the weathering and erosion word search.
Questions and answers
What is wind erosion?
Wind erosion is the wind picking up loose soil, sand and dust, carrying them off, and wearing down rock with the grains it carries. It is strongest in dry places with few plants to hold the ground.
What are the two types of wind erosion?
Deflation and abrasion. Deflation is the wind lifting and removing loose, fine particles. Abrasion is the wearing down of rock surfaces by the grains the wind carries, much as sandblasting does.
How does wind move sand and dust?
In three ways. Fine dust is held up in the air, which is suspension. Sand grains hop along the ground, which is saltation. Grains too heavy to hop are pushed along by the hopping grains, which is creep.
How can wind erosion be prevented?
By keeping the soil covered and slowing the wind near the ground. Farmers plant windbreaks of trees, grow cover crops, leave the soil unplowed with no-till farming, and put up sand fences where sand drifts.