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

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Discover which method for odor removal words the best for stifling refrigerator odors.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

In this science fair project, young children notice and track changes in trees throughout the year.

This science fair project idea designs safe bicycle routes using GPS.

This experiment evaluates whether frequent texters have better finger dexterity compared to people that rarely use text messaging.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This science fair project investigates what type of cookie sheet bakes the best cookies.

Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!

This science project researches the correlation between barometric pressure and wind velocity.

Explore the belief in astrology as a predictive system.

Will the shape of an ice cube impact how fast the ice melts?