DIY Cardboard Marble Run

DIY Cardboard Marble Run for Kids A DIY cardboard marble run is a fun way to turn leftover boxes and tubes into an exciting, hands-on STEM activity. Kids can design ramps, tunnels, and twists, then test and redesign their creations. This project is perfect for curious...

Balloon-Powered Cars

A balloon-powered car for kids is an exciting way to turn simple materials into a moving science experiment. With cardboard, straws, bottle caps, and balloons, your child can build a car that zooms forward using air pressure instead of batteries. It’s a fun STEM...