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

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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 fair project idea produces varying pitches of sound.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.