pH • pH tells you if a substance is an acid or a base • In your body, acids and bases affect the way you feel • Your stomach has a lot of acid inside it to help you digest food!
Your stomach • Your stomach makes acid to help break food into smaller pieces • Sometimes, it makes TOO MUCH acid…what do you think this is called?
Heartburn! Upset Stomach! • What kinds of medicines can you take to help an upset stomach? • Tums • Alka Seltzer • Pepto Bismol • Pepsid AC • How do they work?
Acids & Bases • When you add an acid to a base, they react • The acid cancels out the base and makes water! • So do you think Tums is an acid….or a base? • A BASE!