Build a honeycomb structure that is able to support a heavy textbook or more.
Design a waterwheel that can generate electricity from the flow of water.
Build a redwood tree that is taller than you and that can stand on its own.
Create a bio-glue that holds together a graham cracker skyscraper.
Build a skyscraper that stands strong in the wind and is at least 18 inches tall.
Build a suspension bridge that spans 10 inches and can hold at least 15 pennies!