We all hate when our headphones tangle up! Your goal is to make a container that can hold wired headphones that will NOT tangle them.

The pizza box has been the same over the years, square and ugly! The pizza slides around everywhere. Your goal is to make the perfect ROUND pizza box that will fit into small fridges. Good luck!

People around the world need clean water in a portable way. Try to make a portable water purifier. It has to be eco-friendly too!

Make a mini roller coaster having 3 hills, using anything you can find.

You can fill up a container with water and make a object that can float.