Students correct three process errors — weathering defined as rock movement, erosion limited to deserts, and freeze-thaw cracking labeled as chemical weathering. Part B has four fill-in-the-blank questions defining weathering, erosion, and deposition. Part C has two short-answer questions about forces that cause erosion and how a pothole forms through weathering.
Correcting the weathering-erosion confusion and the physical-chemical distinction establishes the precise vocabulary the rest of the unit requires.
Style:
Weathering and Erosion
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
Weathering is the movement of rock pieces from one place to another by wind or water.
Rewrite: Weathering is the breaking down of rocks into smaller pieces by natural forces like water, ice, or wind.
2. Fix the sentence:
Erosion only happens in deserts because wind is the only force that moves sediment.
Rewrite: Erosion happens everywhere because water, wind, ice, and gravity can all move sediment.
3. Fix the sentence:
Chemical weathering breaks rocks apart by freezing water expanding in cracks.
Rewrite: Physical weathering breaks rocks apart by freezing water expanding in cracks; chemical weathering changes the minerals inside rocks.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. The breaking down of rocks into smaller pieces is called weathering.
2. Water, wind, and ice can carry rock pieces away in a process called erosion.
3. When eroded sediment is dropped in a new location, it is called deposition.
4. Water freezing in rock cracks causes physical weathering.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Name two natural forces that cause erosion and explain how each one moves sediment.
Water carries loose soil and rock downhill in streams and rivers. Wind picks up small sand particles and blows them to new locations.
2. How does a pothole in a road form through weathering?
Water seeps into small cracks in the road. When the water freezes it expands and makes the cracks bigger. Over time the surface breaks apart and a pothole forms.
Weathering and Erosion
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
Weathering is the movement of rock pieces from one place to another by wind or water.
Rewrite: Weathering is the breaking down of rocks into smaller pieces by natural forces like water, ice, or wind.
2) Fix the sentence:
Erosion only happens in deserts because wind is the only force that moves sediment.
Rewrite: Erosion happens everywhere because water, wind, ice, and gravity can all move sediment.
3) Fix the sentence:
Chemical weathering breaks rocks apart by freezing water expanding in cracks.
Rewrite: Physical weathering breaks rocks apart by freezing water expanding in cracks; chemical weathering changes the minerals inside rocks.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) The breaking down of rocks into smaller pieces is called weathering.
2) Water, wind, and ice can carry rock pieces away in a process called erosion.
3) When eroded sediment is dropped in a new location, it is called deposition.
4) Water freezing in rock cracks causes physical weathering.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Name two natural forces that cause erosion and explain how each one moves sediment.
Water carries loose soil and rock downhill in streams and rivers. Wind picks up small sand particles and blows them to new locations.
2) How does a pothole in a road form through weathering?
Water seeps into small cracks in the road. When the water freezes it expands and makes the cracks bigger. Over time the surface breaks apart and a pothole forms.
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9 Questions
15-20 minutes
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