This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea examines the reason boats are shaped and engineered.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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.