Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Test whether plants can grow without sunlight and water.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

This project examines whether people's taste perception is influenced by what they see.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

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

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this project children practice the scientific method while playing with puffy paint.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Test your friends to find out if you can replicate the placebo effect's incredible results.

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