This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.