Utah Education Network
Uen: Floating and Sinking Potatoes
After the teacher puts pieces of potatoes in water and salt water, the students predict what is going to happen and try to name what makes this happen.
TeachEngineering
Teach Engineering: What Floats Your Boat?
Students use modeling clay, a material that is denser than water and thus ordinarily sinks in water, to discover the principle of buoyancy. They begin by designing and building boats out of clay that will float in water, and then refine...