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Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

The goal of this project is to create an exciting topographical map out of dough.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

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

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Do you think heat can affect a plant's growth rate?

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.