Exploratorium
Exploratorium: Structures Around the World
How does that bridge stay up? What are the forces acting on that column? This site helps students understand how structures can be built by having them build their own. Also provides images of real structures for kids to compare with...
Science Buddies
Science Buddies: Explore Matchstick Rockets
If you have wondered how rockets are propelled forward or if you enjoy the excitement of launching a rocket, this is an activity for you. You will learn how to make tiny rockets from aluminum foil and matchsticks, and how to ignite them...