Aim: To observe contraction in gases
Equipment: Aluminium 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 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.
4. Quickly, but very carefully, invert the can as you plunge into a container of water
Observation: The can heated very fast and the particle started to boil in the can. The can also stared to bubble.
Explanation: The particles were vibrating while it was getting even more boiled. That made the water hotter.
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