To model the physical weathering of rock, the student should perform an activity that simulates the physical processes that break down rocks without changing their chemical composition. The best choice from the options provided is:
D. place several cookies in a box, and then shake the box.
Shaking the box will cause the cookies to break apart, similar to how physical weathering processes like abrasion, freeze-thaw cycles, or mechanical breakdown occur in rocks. The other options involve chemical reactions or processes (such as melting) that are not representative of physical weathering.
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