A student wants to model the physical weathering of rock. Which activity could the student perform?(1 point)
A possible activity that the student could perform to model the physical weathering of rock is to break a rock into smaller pieces using a hammer or another tool.
The student could perform the following activity to model the physical weathering of rock:
1. Obtain small samples of different types of rocks.
2. Place the rocks in a container or a bag.
3. Add water to the container or bag, enough to cover the rocks.
4. Seal the container or bag tightly.
5. Place the container or bag in the freezer overnight.
6. Take the container or bag out of the freezer and let it thaw.
7. Repeat the freezing and thawing process multiple times, preferably over several days or weeks.
8. Observe and document any changes in the rocks' physical properties, such as cracks, fractures, or disintegration.
9. Compare the physical state of the rocks before and after the weathering process.
This experiment simulates the repeated freezing and thawing cycles that occur in nature, leading to the physical weathering of rocks and their eventual breakdown.
To model the physical weathering of rock, the student could perform the following activity:
1. Freeze-Thaw Experiment: The student can collect a sample of rock and submerge it in water. They can then place the sample in a freezer overnight. When water freezes, it expands, exerting pressure on the surrounding rock. This expansion can cause the rock to crack or break apart. After freezing, the student can observe the changes in the rock's structure and note the effects of freezing and thawing on its physical integrity. This experiment mimics the natural process of physical weathering caused by the repeated freezing and thawing of water within rock crevices.