Across
- 1. Weathering Is when rocks are broken down and are torn apart by physical force, rather than by chemical breakdown.
- 5. The eating away of surface material from the Earth’s crust.
- 9. Soil is made up of distinct horizontal layers; these layers are called horizons.
- 10. Soil consists of a mixture of weathered rock, finely ground into powder, minerals, and a variety of living and dead life forms.
- 12. The erosion caused by the wind
- 13. The scraping of a rock surface by friction between rocks and moving things
- 14. A sheet of ice that moves slowly over time.
- 15. Process where material is added to a landform.
Down
- 2. brown or black, partially decomposed plant or animal material that forms the organic portion of soil.
- 3. The upper part of the soil.
- 4. The solid rock that underlies loose material, such as soil, sand, clay, or gravel.
- 6. Is when oxygen combines with iron-bearing silicate minerals causing "rusting"
- 7. Weathering Is when Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces.
- 8. The layer or bed of earth beneath the topsoil
- 11. Is the rock or soil that comes from erosion and ends up as little chunks carried by water.