13.5: Weathering and Soils- Challenge 1

1. A river picks up sediments from its banks and moves them with the current. This is an example of ___.

erosion

2. ___ is the breakdown of solid rocks into sediments.

Weathering

3. ___ is the process by which sediments are removed from a given location, such as a rock face or riverbank.

Erosion

4. ___ occurs when a rock is scraped by rocks or other particles.

Abrasion

5. Scratches from rocks in a moving glacier are signs of ___.

abrasion

6. Mechanical weathering is a ___ process.

physical

7. Acid rain, oxygen, and water can all cause ___.

chemical weathering

8. Dissolution of calcite, rusting of iron-based minerals, and potassium feldspar losing its potassium are all examples of ___.

chemical weathering

9. Quartz sand is very common on beaches because ___.

quartz is resistant to weathering, so it is left behind after other minerals erode away

10. Water increases chemical weathering because ___.

it facilitates chemical reactions

11. The rate of water percolation, the temperature at which weathering takes place, and the type of rock all influence ___.

the rate of weathering