BC: floating and sinking
FC: Do you know what makes boats float? By: Shane, Ethan, Victoria, Quest, and Monet
1: Some boats are made out of light matereal
2: A boat should have a large surface area. Not as big as a desert or Asia but still big!
3: A boat needs high and thick walls so that water doesn't leak in and cracks are less likely to form.
4: No cracks
6: the small bobber went down faster because their is less air in the smaller, and more in the bigger bobber!