• strip of stiff cardboard
• tape
• a bottle
• a crayon

1. Create a hoop by taping the two ends of the cardboard strip together.
2. Balance the hoop on top of the bottle.
3. Now balance the crayon on top of the hoop, exactly over the mouth of the bottle.
4. Using a quick horizontal swipe, pull the hoop off the bottle. The crayon should fall straight in!
5. Try it again, pulling the hoop slowly or pushing it off the bottle.

What happened to the crayon?

It went right in the bottle every time.
It went right in the bottle some of the time.
It never went in the bottle.

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