Under $20

In this interactive companion to 50 Maps of the World, you'll find trivia quizzes, search-and-find challenges, spot-the-difference games, and so mu...

It’s the revolutionary science study guide just for middle school students from the brains behind Brain Quest.     Everything You Need to Ace Scien...

Over 400 irresistible, reusable, and collectible stickers to mix, match, and trade! Part of the bestselling Eyelike Stickers series, Eyelike Stick...

Award-winning science writer Seymour Simon explores the wonderful world of insects, with fascinating facts and stunning full-color photographs, in ...

In the ninth DATA Set adventure, the kids blast off into outer space!When Laura hears a strange but familiar buzzing coming from her radio, she ins...

In the tenth DATA Set adventure, the kids must choose sides in the battle between Dr. Bunsen and Dr. von Naysayer!Dr. Bunsen goes up against his ul...