Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

In this design challenge, your child will create a parachute for a small toy using typical household items.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This basketball project explores the best way to make the perfect shot every time.

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

Learn with makes water molecules work with this fun and easy science activity!

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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.

In this project, different brands of microwave popcorn are tested and compared.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This project tests the hypothesis that dark colors absorb more heat than light colors.

This science fair project idea's objective is to understand the concept of air pollution and examine the quality of air in our environments.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!