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.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

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.

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.

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.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science fair project idea explores which fruit molds the fastest.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This science fair project idea produces varying pitches of sound.

This science project allows students to study the psychology of happiness.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

In this project students experiment with making music using only glasses of water.

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

Test whether plants can grow without sunlight and water.

This science fair project idea examines liquids of different densities.

This science fair project idea researches the effects of acid rain on plant growth.