After testing their rigs at the harbor, students went back to the drawing board to design better ones. Nathan, from the

Jeff testing the plastic welder

Julian and Jeff discussing his newly designed kite/balloon

Mariah starting to work on her hot air balloon

And the most exciting moment of the day to see the huge balloon starting to rise

Danny decided to have the kids at the kindergarten test her kite.

Hayley starting to work on her RC plane