Aim:
To observe contraction in gases.
Equipment:
Aluminum can, scissor tongs, bunsen burner, heatproof mat, tripod, gauze mat, an open container of water.
Method:
1. Set up a bunsen burner underneath a tripod and gauze mat.
2. Pour approximately 50-60 ml of water into your can. it should be no more than 1/4 full.
3. Heat the can of water until a stream 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.
4. Quickly, but very carefully, invert the can as you plunge it into a container of water.
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