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Week 10: Mystery Box
You suspect that someone in your family is sneaking into your room and taking your stuff while you sleep at night. Create a trap to catch them in the act using each of our four mystery items: string, rubber band, cup, hanger.
Week 9: Rube Goldberg
Build an amazing Rube Goldberg Machine: an unnecessarily complex creation designed to perform a very simple task, usually involving lots of chain reactions.
Week 8: Build a Boat
Build a boat that floats and can carry cargo without sinking.
Week 7: Solar Oven
Harness the power of the sun and make a solar oven that can toast a marshmallow.
Week 6: Bionic Arm
Build an arm extender that allows you to pick up an object without touching it with your hands.
Week 1: The Egg Drop
Drop an egg from as high as possible without breaking it.