Particle Zoo offers a brief overview and explanation for every subatomic particle you can imagine - all of which your teenager will need to learn about in their first year of Chemistry in High School. Unfortunately. But fortunately for you and your teenager, this app will explain in layman terms what these particles are and what they do.
For more in-depth learning, there is a link to Wikipedia for each particle. This app also doubles as a store, so that you can purchase a plush toy that is shaped like any of the cartoon particles displayed on the app's main screen.
This app is really good for beginners in the subject, or people who enjoy reading popular fiction; which is often riddled with terms that are easily explained in this app.
Compatible with iPhone, iPod touch, and iPad.