Scientific Discovery Lab STEM Family Games Mad Mattr is the building

Mad Mattr is the building toy every kid needs

Now race your opponent to fill every other space on the grid using the nine shapes

Take this sleek remote-controlled truck out for a quick spin

A hilarious pop-up adventure that takes kids through busy city scenes

Perfect for short to long range disc games

Scientific Discovery Lab STEM Family Games Mad Mattr is the buildingOver 40 amazing experiments to explore! Each of the unique projects featured in this kit is designed to spark your child's natural curiosity. Each one is imbued with a touch of magic that feels as if it can't be explained. Create a mini tabletop water cycle, complete with rain, rivers, and an ocean. Build a self propelled water fountain, a balloon powered hover disk, and a magnet powered race car. Learn how to create electricity in a tube, how simple