Weathering and Erosion Review

5. Define frost wedging.

• a. The breakdown of rocks into smaller pieces without changing their chemical composition.

• b. The breakdown of rocks through chemical reactions.

• c. The movement of broken rock particles from one place to another.

• d. The process where water freezes and expands, causing cracks in rocks.

6. What is the difference between weathering and erosion?

• a. Weathering is the breakdown of rocks, while erosion is the movement of soil

• b. Weathering is the movement of broken rock particles, while erosion is the breakdown of rocks.

• c. Weathering and erosion are the same process.

• d. Weathering only occurs in warm climates, while erosion occurs in all climates.

Tags

NGSS.MS-ESS2-2

1. Define mechanical weathering.

• a. The breakdown of rocks into smaller pieces without changing their chemical composition.

• b. The breakdown of rocks through chemical reactions.

• c. The movement of broken rock particles from one place to another.

• d. The buildup of rock particles in a new location.

4. Define unloading.

• Reduced pressure  on igneous rock causes it to expand and allows slabs of outer rock to break off in layers

• b. The breakdown of rocks through chemical reactions.

• c. The movement of broken rock particles from one place to another.

• d. The release of pressure from overlying rocks, causing expansion and fracturing.

3. Define exfoliation.

• a. The breakdown of rocks into smaller pieces without changing their chemical composition.

• b. The breakdown of rocks through chemical reactions.

• c. The movement of broken rock particles from one place to another.

• d. The peeling off of outer layers of rock due to pressure release.

Tags

NGSS.MS-ESS2-2

9. What do wildfires do to California in regards to erosion?

• a. Increase erosion by removing vegetation that holds soil in place.

• b. Decrease erosion by compacting the soil with heat.

• c. Have no effect on erosion.

• d. Cause erosion to occur only in urban areas.

Tags

NGSS.MS-ESS2-2

10. What are examples of mass movements?

• a. Waterfalls and rapids.

• b. Glaciers and icebergs.

• c. Hurricanes and cyclones.

• d. rockfalls and mudflows.

Tags

NGSS.MS-ESS2-2

2. Define chemical weathering.

• a. The breakdown of rocks into smaller pieces without changing their chemical composition.

• b. The breakdown of rocks into one or more new compounds

• c. The movement of broken rock particles from one place to another.

• d. The buildup of rock particles in a new location.

Tags

NGSS.MS-PS1-2

8. Define mass movements.

• a. The breakdown of rocks into smaller pieces without changing their chemical composition.

• b. The breakdown of rocks through chemical reactions.

• c. The movement of broken rock particles from one place to another.

• d. The downhill movement of a large amount of rock, soil, or debris due to gravity

7. List the determinants of the rate of erosion.

• a. Wildfires

• b. Logging

• c. Construction

• d. All of the above.

Tags

NGSS.MS-ESS2-2