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

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

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

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

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

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

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

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.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

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.

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.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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 project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

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