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Head out to the driveway, ball in hand, for a bouncing challenge. Then use those results to make a colorful graph that lets your child compare results.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Gather the neighborhood children together and practice graphing with this backyard tournament!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

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

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Put your kid in charge of her own survey! She'll poll her relatives and friends, collect information, and then create a colorful chart to display her findings.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project idea explores the egg's thin membrane.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea investigates how color affects temperature.

This science fair project idea investigates if fats add to the flavor of food.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Determine whether butterflies like to drink sugar water, salt water, or plain water.