The seventh graders were given the challenge of designing an aluminum foil boat that would be able to float in water with marbles in it. They were given only fifteen minutes to come up with a design that would be able to withhold the most amount of marbles. They had two pieces of aluminum foil. One was for practice and the second one was for the real challenge. They came up with unique and different ideas. The winner was a rectangular-shaped boat with 107 marbles in it!