Things that spin

In your book, Our Wondrous World (Chapter 7), Meera and Dhruv love finding out how things work. Every weekend they explore something new. One Sunday, Meera spins a coin on the table. 'Watch this!' she says.

Can every object spin? Meera and Dhruv find that some can and some cannot. A coin spins, and as it slows down, it begins to shake. A bangle spins too, and the sound it makes changes as it goes. A wooden spinner, a top, is made for spinning. But an eraser does not spin properly.

Then Meera has a question: 'How does a top spin?' So they decide to make spinners of their own.

Many things around us spin. Ceiling fans spin, and so does a potter's wheel when the potter makes a pot.