A simple lab experiment for students to find the density of two solids and a liquid (does not use water displacement). Note that number 1d should not state "weighs" since mass is being found.

This experiment allows you to dramatically demonstrate the different densities of five different common household liquids.

This experiment allows your students to study the effect of temperature on water motion and also to create their own density driven current.

In this science fair project, students will make hot-air balloons using a toaster and dry-cleaning bags, and see how the size of the balloon affects its flight. The Science Buddies project ideas are set up consistently beginning with an...

In this science experiment, you will learn about density while making water fireworks!

For this activity, students will investigate how temperature and currents affect the salinity of ocean water, making predictions after studying ocean maps. It is recommended that teachers do the experiment themselves before presenting it...

This site from Suzy's World explores how and why certain liquids mix better than others. Content includes fun facts and a classroom experiment. This site also includes links to additional information on related subjects.

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.