Determine whether the application of Febreeze will lower the bacterial count.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).