2013 was an anniversary year for the live-action educational TV program Bill Nye the Science Guy. In honor of that occasion, developer Disney Education created the Bill Nye the Science Guy 20^th Anniversary App.

Welcome to Nye Labs, where you’ll discover on the main screen (a.k.a. Bill’s retro-looking desk) an assortment of objects that when tapped lead you to different sections of the app, all narrated by Bill himself.

Learn about telling time with a sundial on Mars versus on Earth (Martian minutes are longer) or enter the “Whorl of Illusion!” to learn about different types of optical illusions. When you tap the Bill Nye bobblehead on the desk, he provides science trivia (e.g., "Humpback whales can go without eating for six months"). In the TV portion of the app, you can watch episodes of the show in which Bill teaches you about chemical reactions, the heart, the planets and sun, gravity, earthquakes, magnetism, friction, light optics, and mammals. NB: Each video costs an additional $1.99 in the app store. “The Book of Do-It-Yourself Experiments” provides instructions for hands-on projects, such as testing eggshell strength and cleaning pennies, to try at home.



Two games are included in the app. One is an “Archeology Dig of Science” with robot Diggity and his dog Rocky in the yard behind the lab. Complete three levels (crust, mantle, core) by having the robot dig down into the earth to discover artifacts worth points. You need to earn a certain number of points within the time limit to advance to the next level. In the other game you are looking for signs of life on the Plutoid Pluto — but you have to travel there from Earth in a rocket ship. Along the way you’ll pass other planets and learn facts about each one. You must figure out how to use each planet's orbit to move you forward in space when you launch your rocket; timing is everything here. You also must complete missions along the way, such as photographing each planet and launching satellites. Engaging in missions will earn you "money," which you need to continue playing the game (launching rockets is expensive!). But remember to save some missions for the end so you can drop a probe on Pluto and get back to Earth. And don’t get lost in space!



Both games were a bit tricky to master and certainly not designed for the youngest users, but with a little practice they were fairly enjoyable.

Inside the desk drawer on the main page, you’ll find a few little extras, including a step-by-step guide on “How to Tie a Bow Tie” — so you can wear one like Bill Nye — and a copy of the Periodic Table of Elements with facts about some of the elements. There's no way turn off the sound effects or Bill’s narration in any of the sections, so they got repetitive after a while.

This app contains a random assortment of science facts and experiments... but it's just that sort of variety that made the show so interesting to watch when it aired on PBS Kids in the 1990s and that makes the app, with its impressive and responsive graphics, an informative and entertaining e-introduction to Bill Nye’s approach for making basic science concepts accessible to kids.

Available for iPad, iPhone, and iPod Touch (requires iOS 6.0 or later); free with in-app purchases. Recommended for primary and intermediate users.