• a peeled, hard-boiled egg
• an empty glass bottle, with a neck slightly smaller than the egg
• three matches

1. Grab a parent or adult to light the first match and then light the other two.
2. Drop all three lit matches inside the bottle.
3. Before the matches burn out, place the egg in the mouth of the bottle.
4. The matches go out and the egg starts to slide in!

Why does the egg go in the bottle?

air in the room pushes the egg in
air in the bottle pulls the egg in
gravity pulls the egg in

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