Glad you asked...
To make a boat for school projects, you can use a milk carton that is cut down the center of it. You can add stuff to it depending on what kind of boat you are making.
Then again, this answer might help you...
What can be a more interesting school project than a boat that is self-powered? A steam powered boat can be created with just a few household objects. For more information look here: http://www.all-science-fair-projects.com...;

