Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

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

With this fun and easy method of printing your child will draw patterns, trace them with yarn, paint and press their very own masterpieces.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

Help your kids put together a travel journal for your family's next vacation to get them reading, writing, and thinking about what's happening on the trip.

Forget model kits! Promote creativity by having your child construct a dinosaur model using marshmallows and toothpicks.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Transform your kitchen table into a winter wonderland with a cookie and cocoa party that looks freshly dusted with snow.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.