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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.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea raises awareness of a real ecological issue.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Have your child kick off their summer vacation by making a miniature water slide!

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

Compare the ignition rates of various types of flame-retardant materials.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

This science fair project idea investigates the relationship between memory and age.

This project determines how much the rebound rates of tennis balls change after ten games.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

This experiment will explore whether fractals really repeat themselves infinitely.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project idea explores the fastest average speed a human can talk.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.