Build a machine that accomplishes a task in an inefficient way.
Design a tool that can lift objects from a water depth of at least 1 foot.
Build a balloon helicopter that can fly at least 3 feet from the ground.
Create a simple machine that transfers a rotational motion into a linear vertical motion.
Turn a straw into a simple machine that works in the same way that the joints in your body work.
Build a simple machine that transfers rotational motion into linear reciprocating motion (repetitive back and forth motion).
Design a tool that an astronaut could use to pick up an object in space.
Build a Mars rover that can travel using elastic energy.
Create a simple machine that transfers motion from one straw to another using a belt. Make sure the direction of your motion remains the same.