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Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

Construct batteries that make electricity from fruits with this fun science fair project.

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

Explore the neural and mental mechanisms at play in mental imagery.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

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.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

What happens when colored beams of light mix? You might be surprised.

With this activity, not only will you be experimenting with giving accurate information, you'll also teach your child how to write good scientific procedures.

Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

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.

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.