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

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.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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

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

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

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

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

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

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.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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.

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

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

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This project determines what category of person is most likely to be ticklish.

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