Sam did an experiment with ball bearings in a bottle to show the movement of particles in solids, liquids, and gases. The experimental set-up is shown below: A bottle is shown packed with ball bearings What should Sam do to represent the movement of particles in liquids?
A: Leave all ball bearings in the bottle, and then shake the bottle slowly while the ball bearings remain in their spot.
B: Leave a few ball bearings in the bottle, and then shake the bottle vigorously so that the ball bearings hit one another and the sides of the bottle.
C: Remove half of the ball bearings, and then shake the bottle vigorously so the ones at the top hit one another.
D: Remove half of the ball bearings, and swirl the bottle so that the ball bearings remain in contact but can move around
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Answer:answer is d
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