Challenge

Candy Catapult Challenge
The days after Halloween are always filled with candy. You eat all the good stuff and have a pile that ...

Paper Airplane Obstacle Course
Set the kids to the task of charting an obstacle course for paper airplanes. Then they can each fold an ...

What Makes a Rainbow? Challenge + Rainbow Coloring Page
If I told you that little bearded men dressed in green were guarding untold wealth under a bridge of refracted ...

Bowerbird Challenge
Can you be as artistic as the Bowerbird? Take the challenge and build a nest as attractive as the Bowerbird ...

Biomimicry Solutions – Challenge
Have you ever wondered why airplanes look so much like birds?→ NO? The laws of physics cause size, shape, and ...

Top Secret Cypher – Challenge
Secret codes just like this have been used for thousands of years and are still used everywhere today. Computer encryption ...