Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

In this fun activity, your child will create their very own solar oven to bake s'mores!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

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

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 causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

In this science fair project, students make their own rain gauge to measure rainfall.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature