Students analyze the relationship between density, buoyancy, and salinity. In this chemical properties lesson plan, students read a background activity for the lesson plan and experiments to the topics. Students discuss the questions and...

Students use density to identify what metal a gold colored weight is made of. They use a spreadsheet to graph the experimental density of common metals and compare the know densities to their calculated density of the known metal.

Students research inventors and inventions and their impacts. In this invention lesson, students research inventions and their affects in good and bad ways.