This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?