In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

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

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

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.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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 liquids of different densities.

This science fair project idea deals with the qualities of shade on a sunny day.

This science fair project idea determines the most effective method of preserving food.

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

The purpose of this science fair project is to build a basic radio.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

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

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Challenge your learner to design and build a city of their own in this creative engineering activity.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

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.

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

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

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.