What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Want to turn your child into an expert orator, but don't know how to rid him of the middle school mumbles? Try this activity to get your child to speak up!

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

This biodiversity project examines the biodiversity in your own backyard.

Help your child sharpen time skills by creating a special day and charting each part in a detailed schedule.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Start your toy engines -- this is going to be a fast and friction-filled race!

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This science fair project idea examines whether people can decode scrambled messages.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

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

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.