All

These plants have been around since the time of Dinosaurs! At that time, they grew to over 120 feet, much taller than even the Tyrannosaurus Rex! W...

Welcome to the fascinating world of mechanical engineering! Make 8 motorized robots that move in different ways while exploring how each one uses g...

Get ready to have fun making delicious lollipops while learning science and math! Whip up batches of red cherry and blue raspberry lollipops, plus ...

Volcanoes erupt with earth-shattering power! Build this giant, foot-tall model from plaster and cardboard and watch flowing red 'lava' spew from it...

Build your own mechanical hand, slip it on like a glove, and get a grip, without motors or electricity. It uses hydraulic power to simulate the mov...