Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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 whether color affects a person's emotional state.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Create a bee garden to help shelter bees in your area.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.