This science fair project idea determines if the color of light affects the growth of plants.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science fair project idea investigates whether plants can survive being frozen.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Word color association is just a fancy way to talk about the way we connect colors with words.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

In this project, the affects of vitamin E are observed on a rose petal.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Find out whether putting something on top of a plant will inhibit its growth.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

The project determines which laundry detergent is best for cleaning clothes.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

The project determines which type of birds prefer which type of birdseed.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.