The Crushing Pop Can

Materials:

* 1 Aluminum soft drink can

* hot plate

* water

* hot mitt glove

* bowl

* cold water

Procedure

Put one half-inch of water in the soft drink can and put the can on the hot plate. When the water is boiling, quickly (I mean quickly) invert the can into the bowl of cold water. If it fails, it is because you are too slow! It is OK to try again. If you are fast, the can is crushed explosively!

How it works

The steam drives the air out of the can. When the can is inverted into the cold water, the steam condenses back to water, leaving a vacuum in the can. The air pressure outside crushes the ca.