The Imploding Can

Aim: To observe contraction in gasses.

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 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 it into a container of water.  

Observation: What in saw was there was steam going up on the can.

Explanation: There was 1/4 of water in the can. We heated it up so steam is coming out. The particles are zooming around and when we put it in cold water it instantly cools down.