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

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

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea explores how length affects the weight a bridge can hold.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

The project investigates how water and movement affects erosion.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This science fair project idea investigates whether air has mass and weight.

This science fair project examines how seeds hitchhike on animals and clothing.

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

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.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea investigates which objects float and sink in honey, water, and oil.