Step 1: Things you Need
. A can...
. A stove,or bunsen burner. (some kind of heat source that can boil water)
. Tongs (to hold the can while heating it).
.A bowl (to fill with water)
. Water (room temperature water to fill the can with, and cool water to fill the bowl with)
Step 2: Let's get Started!
(P.S- This may make you jump, so be prepared)