Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Test whether spot magnets can help improve the symptoms of an injury.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This science fair project idea determines whether the diet and taste preferences of humans relate to their personality.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

This science fair project idea demonstrates that plants give off water.

Test the placebo effect in different groups of people.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

Explore the relationship between personality traits and birth order effects.

This science fair project idea uses the process of chemical weathering to change a mineral.