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.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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

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

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Slip some science into storm watching with a homemade rain gauge!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Learn all about balance and motion as your child designs a corn maze!

This science fair project teaches students about wilting and browning of salad greens.

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

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.