Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

This science fair project idea determines whether the hand a person writes with relates to which side they will choose from in a fake taste test.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

In this cool science experiment, test and compare the adhesive holding strength of homemade casein glue versus commercial glue.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.