Unit A: Energy and Matter in Chemical Change

Learn about the wide variety of fuels used in vehicles.

What are your teeth made up of? What chemistry is at work in your mouth? Why do some people get cavities even if they brush regularly?

Oceans absorb the greatest amount of solar radiation on Earth. Ocean warming can lead to glaciers melting and ocean acidification.

Learn about the chemical reaction that happens between acid rain and limestone.

Learn about acid-base reactions. Make you own pH indicator and test it with different solutions.

It starts with curds and whey! Explore the basic chemistry behind making cheese in this hands on activity.

This backgrounder explains what greenhouse gases are and how they contribute to climate change.

Learn about the organic compounds that make up lipstick as well as about some of the chemistry that goes into this popular cosmetic.

Sodium is a useful chemical element. You consume it as table salt regularly. Learn about salt mining, sodium uses, and what problems too much sodium can cause.

Explore acid-base chemical reactions that really get things bubbling in the kitchen!

Hydrogen’s tendency towards combustion is what makes it both a dangerous chemical element and a useful energy source.

Explore the chemistry behind why bananas turn brown. Can chemistry also help prevent this?

Learn how you can write and reveal secret messages in this hands-on chemistry activity.

Get your popcorn kernels dancing with this uplifting chemical reaction.

You can make your own terrarium for growing plants!