acids and bases
1) ph scale
Click on the button below to open an image of the PH scale (0-14) The low #'s are acids, the high #'s are bases.
2) stomach acid?!? Gross!
Read this article to learn about how strong stomach acid is and how it works.
3) What is an acid and base? How do we know which is which?
Watch the video and take the quiz. Can you get at least +6/7 correct?
4) LItmus Paper Test - acid or base? Can you tell?
Complete this simulation by testing litmus paper in a beaker and deciding which substance it is!