In this project, waves of vibrations are experimented with using water in glasses.

In this project children practice the scientific method while playing with puffy paint.

This project compares the strength of one, two, and three-ply toilet paper.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

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.

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

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!

Test whether plants can grow without sunlight and water.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

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.

Do you think heat can affect a plant's growth rate?

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea investigates if fats add to the flavor of food.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.