Build a plane that is powered by stored energy from a rubber band, balloon or spring. The plane should be able to fly straight for 5 feet.
Make a cantilever that can hold 5 marbles at least 12 inches away from its base structure.
Build a 3-D object out of tetrahedra that is as big as you are.
Make pieces for a structure that builds itself using magnets.
Use a microcontroller, motors, and mechanisms to make a robot that moves like a living creature!
Make a device that will carry a wave and record the wave’s movement.
Build a signal horn to make low frequency sounds that can be heard from far away.
Build a water pump that can push water at least 1 foot in two directions.
Make a mechanical tail that is strong enough to break through a piece of paper.