Question

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:

*Pic*

What should Sam do to represent the movement of particles in liquids?

Leave all ball bearings in the bottle, and then shake the bottle slowly while the ball bearings remain in their spot.

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.

Remove half of the ball bearings, and then shake the bottle vigorously so the ones at the top hit one another.

Remove half of the ball bearings, and swirl the bottle so that the ball bearings remain in contact but can move around.

Answer 1

This one’s a little tricky. I think your 2 best options are B and D

Not sure if you want to represent the particles moving but not making contact, which would be B or the particles moving and keeping contact which would be D.

Hope this helps a little

-AaronWiseIsBae (aka Lexi)

Answer 2

The best option is D.

Since Sam wants to represent the movement of particles in liquids, he should remove half of the ball bearings and swirl the bottle so that the ball bearings remain in contact but are able to move around. If all the bearings are bottled up fully, the movement of the particles in liquids wont be quite clear.