To represent the particles of a solid, Polly should pack the bowl with marbles and then tap it gently. This simulates how particles in a solid are closely packed together and have limited movement, vibrating in place when tapped.
Polly did an experiment with marbles in a glass bowl to show the movement of particles in solids, liquids, and gases. The experimental set-up is shown below:
A glass bowl is shown with four marbles inside it.
What should Polly do to represent the particles of a solid?
Group of answer choices
Take out two marbles from the bowl and then shake it quickly.
Add two more marbles to the bowl and then shake it slowly.
Add water to the bowl so that the marbles start sliding past one another.
Pack the bowl with marbles and then tap it gently.
1 answer