1. Nurul, Usman, Ali & Imran.

2. How would you get a boiled egg
into a conical flask?
 You can’t use the following:
 Physical force
 Get a bigger flask
 Break the egg apart
 All you have are:
 Box of matches
 Paper

3. Get the egg
to the bottom
of the flask!
Egg
How is this
possible? Conical
Flask

4. You will need:
 x1 – Heatproof mat
 x1 – Conical flask
 x1 – Boiled egg
 x1 – Strip of paper
 x1 – Safety goggles
 Caution – Sixth formers & adults will
carry the matches, please ask for help!

5. How its done...
1. Light the paper with a match
so it sets on fire
2. Place the paper quickly
inside the conical flask
3. Cover the top of the flask
with the egg
4. Stand back & watch!

6. Why does this happen?
 Expansion & Contraction
 When things heat up they expand...
 The heated air from the flame expands in the flask,
but all the oxygen is used up due to the egg
covering the bottle opening...
 The fire dies, and the air inside the flask cools
again causing it to contract...
 Air cannot get into the flask so a vacuum is
created. This vacuum sucks the egg into the flask.

7. Thanks for Participating in
our experiment...
We hope you enjoyed it!