"A" IN SCIENCE
'(<a href="http://www.j-archive.com/media/2008-03-25_DJ_07.wmv">Jon  of the Clue Crew reports from the lab, holding an inflated balloon.</a>)  If you put a flame up to a balloon it will pop, but if you put water inside the balloon and hold it over a flame it will not pop, because the water does this'
absorb (the heat)