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Other

Lapeer County Schools Science Resources: Density Lab

For Students 9th - 10th
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.
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Other

The Science House: Daffy Densities

For Teachers 9th - 10th
In this lab experiment, students will use 4 solids and 6 liquids to create colorful, layered rows demonstrating that less dense materials will float on top of the more dense materials.
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Hunkins Experiments

Hunkin's Experiments: See if a Ring Is Pure Gold

For Students 9th - 10th
Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one...