- a peeled, hard-boiled egg
- an empty glass bottle, with a neck slightly smaller than the egg
- three matches
- Grab a parent or adult to light the first match and then light the other two.
- Drop all three lit matches inside the bottle.
- Before the matches burn out, place the egg in the mouth of the bottle.
- The matches go out and the egg starts to slide in!
Why does the egg go in the bottle?