The stomach acid kills the bacteria and activates an enzyme that helps water break down food
Http://www.pbs.org/wgbh/nova/cancer/folkman.html
I believe this website will help :)
Some questions that can be answered by <em>Science</em> is:
-Is it possible to give nature and have shelter on other planets?
-What caused the global-warming?
-How can plane's fly?
When you rub it, it creates some electrical forms inside that will charge it