Gang of Four @sciencetoymaker
Gang of Four @sciencetoymaker
Uploaded December 2007 | Updated September 2026, 2 days ago
Three great friends--from the Netherlands, South Africa and England--visited me in Pennsylvania, US. For two days they came into the middle school where I teach and wowed my students! Great memories. Thanks Jeff, Guus and David!
Gang of FourBuild an Overhead Water Rocket Launcher Part 4 seal bumpHow to Make a Hot Air Balloon Part 3 Fuel and SafetyPart 12 Build a Putt Putt/Pop Pop Steam Boat s9strwTapeFamily Turns Violets to pH Indicator (acid/base)Part 1 Surf an Origami Hang Glider a.k.a Handy Glider on a Wave of Air.movBuild a Pull String Helicopter BETAPart 2 Warrior Run Heritage DaysPart 3: The Light Stuff (human-powered flight)Make the Ben Bug and Tri Bug Walkalong GlidersPuttys GreetingWalkalong Flight Interview with John Collins
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Gang of Four

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