See also Pringle's Challenge. This project involves building a simple structure that is strong enough to protect a very delicate core. Some ideas that have been known to work include rolling the paper into tubes to make it stronger and building very rigid outer frames by using many layers of paper. Household wood glue. Heavy, hardcover books.
Procedure Build a tower or a bridge out of the wood.
See how many books your tower can support before collapsing. Afterwards, weigh the books that the tower supported to see how much weight it actually was. This project is pure civil engineering. Bridges are a necessity for transportion in today's society. Think of how difficult your life would be if you and your car had to take a ride on a boat every time you came to a river.