All Design Challenges
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!
Build a signal horn to make low frequency sounds that can be heard from far away.
Make a mechanical tail that is strong enough to break through a piece of paper.
Build a flower that can open to communicate with pollinating insects and birds.