Activity
Museum of Science

Museum of Science and Industry: Online Science: Design a Submarine

For Students 3rd - 9th
Become an engineer, and design a submarine that moves in the water like a real submarine. Try making it sink, float, and hover in the water.
Activity
Center of Science and Industry

Cosi Columbus: Buoyant Bubble [Pdf]

For Students 3rd - 8th
Learn about density in this hands-on science experiment. Includes full list of materials, procedures, and scientific explanation of what makes an object float or sink. [PDF]