|St Albans' Science Club||
This experiment idea came from one of our students in science club. Neave had read in one of her science books at home about an egg being sucked into a bottle. We first tried it the traditional way of lighting some candles in a glass bottle and then placing a boiled egg on the top. The egg was slowly sucked into the bottle neck but got stuck halfway.
We then tried it a different way. We stuck three candles into the egg and then lowered the bottle over the egg. Quick as a flash the egg got sucked all the way into the bottle!
No photos of this experiment as we got too excited doing it.
To help us understand more about air pressure we also did another experiment. We had some trays full of icy water. We then placed an empty bottle on top that had just been full of hot water.
After the bottle had been in the water for a short while we observed that it was starting to crack and constrict.