The Imploding Can

Behaviour of Matter - Contraction

Aim: To observe contraction in gases.

Hypothesis: I think its gonna explode.
Equipment: Aluminium can, scissor tongs, Bunsen burner, heatproof mat, tripod, gauze mat, an open container of water(ice cream container)
Method: 1) Set up a Bunsen burner underneath a tripod and gauze mat
2) Pour approximately 50-60mL of water into your can. It should be no more than 1/4 full.
3) Heat the can of water until steam is seen escaping from the top.
4) Quickly, but very carefully, invert the can as you plunge it into a container of water
Observation: When we tip off the can, it suddenly squeezed up.
Explanation: When the liquid is heated, the particles expanded. But when its cooled down, the particles contract which makes the particles to stop moving around.