This holiday season, don't forget the many delights of "cookie science"! Here's a confection we especially like.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

Celebrate Earth Day by making a poster that encourages people not to litter.

This science fair project idea determines if the color of light affects the growth of plants.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

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

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This project examines the concentration of dissolved oxygen in water, with and without oil.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Here's an activity that uses second-semester high school algebra to determine which pizza gives you the most bang for your appetite. Here's how to get started:

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Use Martin Luther King, Jr's historical "I Have a Dream Speech" to inspire your child to write down her own dreams.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Check out this dice game perfect for teaching your savvy kid the fundamentals of probability.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

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

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

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 science fair project idea determines whether dogs can be trained faster using a food reward or praise.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.