A student wants to model the physical weathering of rock. which activity could the student perform?
A: Place a paper boat in a ditch, and then use water from a hose to make it sail away.
B: Place several cookies in a box, and then shake the box
C: Place drops of acid on chalk and then shake the box.
D: Place ice cream in a bowl, and then watch it melt.
B: Place several cookies in a box, and then shake the box
To model the physical weathering of rock, the student could perform activity B: Place several cookies in a box and then shake the box. By shaking the box, the cookies will collide with each other and break into smaller pieces, simulating the process of physical weathering where rocks break down into smaller fragments due to external forces such as wind, water, or abrasion.
To model the physical weathering of rock, the student could perform activity B: Place several cookies in a box, and then shake the box.
Explanation: Physical weathering refers to the breaking down of rocks into smaller pieces without altering their chemical composition. In the given activities, only placing several cookies in a box and shaking the box simulates the process of physical weathering. By shaking the box, the cookies will collide with each other, causing them to break into smaller pieces, similar to how rocks can break apart due to the physical forces acting upon them. The other activities, involving water, acid, and ice cream, do not directly simulate physical weathering.