Understanding Structures and Mechanisms: Form and Function 
www.learner.org/interactives/parkphysics/
How do physics laws affect amusement park ride design? In this exhibit, you'll have a chance to find out by designing your own roller coaster. Plan it carefully--it has to pass a safety inspection.You can also experiment with bumper car collisions.
Explore large structures and what it takes to build them with BUILDING BIG™
www.forgefx.com/casestudies/prenticehall/ph/catapult/design-
This interactive 3D simulation allows students to work on the development of a piece of virtual machinery, capable of launching giant paintballs into the air. Using the Design and Test Methodology, students must create their hurling machine so that it is ...
Welcome to GreatBuildings, presenting 1000 classics of world architecture, and hundreds of their great designers, in the leading general architecture reference site online.
www.technologystudent.com/struct1/struindex.htm
Information and activities that teach about different types of structures.
www.pbs.org/wgbh/nova/bridge/build.html
You're a civil engineer. Four bridges need to go up. Only you can decide where they go...