Aim
To observe contraction in gases.
Equipment
-Aluminium can
-Scissor Tongs
-Bunsen Burner
-Heatproof mat
-Tripod
-Gauze mat
-An open container of water
Method
-Set up a Bunsen burner underneath a tripod and gauze mat.
-Pour approximately 50-60ml of water into your can. It should be no more than 1/4 full.
-Heat the can of water until steam is seen escaping from the top.
Carefully grip the can with the scissor tongs. Ensure you have a firm hold of the can before lifting it off the gauze mat.
-Quickly, but carefully, invert the can as you plunge it into a container of water.
Results
Discussion
-When we finished heating up the can we plunge it into the water and it shrinks into itself.
