How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

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.

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

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

This project examines whether sugar substitutes are as sweet as real sugar.

This science fair project examines discover whether different formations of deodorant works better for certain skin types.

Determine how good we are at direct and indirect observation.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.