What is pH, anyway? If this question has been eating away at you, wonder no more! In this BrainPOP movie on the pH scale, Tim and Moby explain what makes an acid an acid and a base a base — and how the measure of their strength relates to pH. Among other things, you’ll learn why acids can eat away at metal and how acids and bases neutralize one another. You’ll also find out about buffers, substances that can block pH changes for a short period of time — and how to use pH paper to determine a solution’s acidity. It’s basic knowledge you definitely need!

Watch the Science movie about pH »