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acids, bases & the pH scale

Acids, Bases, and pH
Image: iStockphoto.com/haveseen

Acids, Bases, and pH

You wouldn't want to be dropped into a vat of acid, would you? Well, why not? What are acids, anyway? And what does the pH scale say about them and their chemical opposites, the bases?

You'll find lots about acids, bases, and pH on this page. But if you're facing a test on the subject and feeling confused, start with this first site, which will give you facts about basics and acids, pH-ast!

Bozeman Science
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pH Meters

pH Meters

Forget litmus paper! For some tasks, like keeping tropical fish alive, you need to measure pH exactly. You therefore need a pH meter, explained here. More...

Article
ExplainThatStuff!
Candy Experiment: Acid Test

Candy Experiment: Acid Test

With a little baking soda and water, you can find out if your sour candy contains acid. More...

Activity
KidsHealth
Acids, Bases, and the pH Scale

Acids, Bases, and the pH Scale

If you want a single simple explanation of acids, bases, and the pH scale, with lots of examples, this site's for you. More...

Article
Science Buddies
Activity: Making Naked Eggs

Activity: Making Naked Eggs

Even the weak acid in vinegar will break down the calcium carbonate that makes up egg shells. Something to think about: Calcium carbonate makes up seashells, too. And the oceans are acidifying.
More...

Activity
Exploratorium
Cabbage Chemistry: Finding Acids and Bases

Cabbage Chemistry: Finding Acids and Bases

You need little more than a red cabbage and a pair of goggles to (safely) test whether things around your house are acids or bases. More...

Activity
Scientific American/Science Buddies
Chemistry: Acids and Bases

Chemistry: Acids and Bases

As it happens, there are 3 different definitions of acids and bases. Work through the links on this site if you want to be an acid-base ace. More...

Article
FactMonster.com
pH and Bacterial Growth

pH and Bacterial Growth

Scientists answer a student who wants to know how different pH levels affect the growth of bacteria. More...

Article
Argonne National Laboratory
pH and pOH

pH and pOH

Playing parts of this video over and over…and over...will help you better understand acids, bases, pH, and even pOH. Yes, there are equations here, but Hank Green makes them fun. More...

Video
CrashCourse
pH Scale: Acid Rain

pH Scale: Acid Rain

How acidic is acid rain? Compare it to battery acid, lemon juice, ammonia, bleach, and other substances on the pH scale, including clean rain and pure water. More...

Article
Environmental Protection Agency
The Acid Sea

The Acid Sea

Carbon dioxide pouring into the atmosphere is turning the oceans more and more acidic. This may spell trouble or even disaster for many marine organisms, including those that build coral reefs. More...

Article
National Geographic
What Makes Things Acid: The pH Scale

What Makes Things Acid: The pH Scale

To be an acid, a substance must contain hydrogen. However, some substances with lots of hydrogen aren't acids. A biochemist explains. More...

Article
Scientific American

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