Arlo wrote:What other materials are you allowed to use? Glue? Paper clips? Just toothpicks?
Sorry I couldn't respond to this thread sooner. I'll get into reading all your advice so far after this post.
I did catch what Arlo said. I can use...toothpicks and glue.
Ok, in that case the answer is...
Make a 5 x 30 x ? (whatever your width specification is) mold.
Fill it with glue (use good glue).
Mix in a couple toothpicks for show.
Let the glue harden into a solid block overnight.
Add as much more glue on top of the base as you can reasonably get away with...
OK, so you won't have the lightest bridge, but you'll definitely be able to support that brick.
This isn't only a great way of building a bridge, but also of finding out whether your lab teacher truly is cool. If he is, you get a big old A, and will probably be his favorite student for the rest of the year. If not, you'll probably go home with an F...
(Needless to say, I'd give you an A.