How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

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

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

This science fair project evaluates which sense produces the fastest response time: hearing, touching, smelling or seeing.

This experiment will evaluate how texting and talking on cell phones influence reaction time.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

This project investigates an interesting question: If one learns to write backwards, is one also able to read backwards?