George and Harold, and their doubles, Yesterday George and Yesterday Harold, have a good thing going. Two of them go to school, while the other two hide in the tree house and play video games all day-then they switch! But when their malicious gym teacher, Mr Meaner, creates a method of mind control that turns their fellow students into attentive, obedient, perfect children, the future of all humanity will be in their hands!

A young aspiring engineer must first conquer her fear of failure.

When Kristoff and the ice harvesters challenge Oaken and his new invention to a friendly contest, Oaken, Elsa, and Anna becomes embroil in a mystery involving a missing ice harvesting machine.

Griffin Bing and his friends are trying to locate Mr. Fielder's missing thirty million dollar lottery ticket, and thwart the local bully, Darren Vader, who wants to find it for himself--and Mr. Bing's latest invention may help.

Bill Nye examines the process of inventing.

Describes the development of one hundred world-changing inventions, including rockets, the internet, refrigerators, blue jeans, light bulbs, and antibiotics.

Ideal for curious kids whose parents won't let them take things apart, this book allows readers to dissect, explore, and explain how things do what they do. Complete with exciting diagrams and illustrations, accessible explanations, trivia, and fun features.

Because he always seems to be running late, Buzz invents a way to get to school double-quick.

Henry Ford invented the automobile. The first video game was created in a science research lab. A melted candy bar inspired the invention of microwave ovens. You may have heard these beliefs before. But are they really true? Can they be proven through research? Let's investigate seventeen statements about inventions and find out which ones are right, which ones are wrong, and which ones still stump the experts! Find out whether Alexander Graham Bell...

Luthor the Doberman, a former attack dog, has a good home with Savannah Drysdale, but every time a certain truck passes he goes into a frenzy, while Griffin Bing is caught up in trying to beat his rival, Darren Vader, at an invention contest.