Questions:

1. The problem of this experiment was to see how many pennies we could put on a boat made of tin foil, tape, 4 toothpicks and a marshmallow.
2. hypothesis: The boat will hold at least 70 pennies but at most 110.
3. The boat I made held 99 pennies before sinking.
4. For my boat, I folded the sides of the tin foil up to hold the water out and then taped marshmallows on the bottom of it so it would float better.
5. If I did this again I would keep the same design but I would make the sides of the boat a bit higher to keep the water out for longer.