Engineering & Building projects
Bridges, towers, catapults, marble runs and moving machines. Engineering challenges that teach children how things work by building them from card, sticks and junk.
6 projects · page 1 of 1
Projects
Balloon Ghost Zip Line
When air rushes out of the back of the balloon, it pushes the ghost forward along the string. That is Newton's third law in action: every push has an equal push the other way, the same idea that launches real rockets.
Cardboard Marble Run
Gravity, slopes and speed - steeper ramps make the marble go faster.
🔒 PremiumStomp-Powered Firework Rocket Launcher
Engineers a launcher from a plastic bottle and an old piece of hose that fires paper rockets with a stamp of the foot. Children learn that squashing the bottle pushes air through the hose at high pressure, and they investigate how launch angle and rocket weight change how far a rocket flies.
🔒 PremiumClimbing Spider String Toy
Pulling the strings one at a time makes the spider climb because the angled straws grip the string with friction on one side and slide freely on the other. It is a hands-on way to explore forces, friction and angles.
🔒 PremiumEgg-Drop Challenge
Cushioning and slowing a fall (forces and impact) to protect a fragile object.
🔒 PremiumBalloon Hovercraft
A cushion of escaping air reduces friction, so the disc glides almost freely.