First, we cut tin foil and shaped it into a boat.
Next, we filled up a bucket with water and tested the boats to see if they float.
Then, we put marbles in the boats to see how many marbles the boat could hold without sinking. I found that my "4x4" boat could hold 10 marbles before sinking.
(Note from the teachers: in the video above, Mac demonstrates how the tin foil boats were tested and explains the effect that surface area has on an object's buoyancy.)
