This is a cool experiment that i demonstrated to my classmates : what happens is that ...........................
A small amount of water is heated in a soda can until steaming. The can is then quickly put in cool water, mouth side down. The sudden change in temp causes a sudden change in pressure, making atmospheric pressure higher than the can pressure. Thus, the can collapses under the pressure.
1. Any soda can
2. oven or Bunsen burner
3. beaker ( 250 ml - 500 ml)
4. room temperature
P.S : this is my first instructable so please rate it!
Step 1: Getting Started!
first get your beaker and fill it all the way to the top ( see first picture) - a glass cup could work too!
Then fill ur can with enough water to fill the bottom ( see second picture)
Step 2: Be Careful
now you have to head to your kitchen for the oven! but be careful.
then heat the can SLIGHTLY until steam comes out. ( see picture 1)
Step 3: The Fun Part
NOTE: BE SURE TO PUT TISSUE AROUND THE PLACE YOU ARE WORKING IN BECAUSE THE CAN MAY SLIP AND SPILL THE WATER! BUT DONT WORRY IT IS ONLY WATER!
now hold the pepsi can with tongs from under NOT ON TOP then get the beaker or the cup and flip the pepsi can UPSIDE DOWN so that the opening part is down and put it about two centimeters under the water ( see pic 1)
Step 4: The Result
as soon as the can touches the water the can will collapse and crush (look at pic 1)
Step 5: My Video Presentation
Step 6: Suggestinos!
please try the following if u want:
1. u can try boiling the water in the beaker and leaving the water inside the can unboiled to pop the can!
2. u can try using different temperatures of waters to get different effects!
enjoy and please rate it.
Step 7: Explanation
this happens because when u heat it, the atmosphere pressure inside the can becomes less than the atmosphere pressure outside of the can.! please rate