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Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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.

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

Here's an arts and crafts guide for your high-school teenager that'll help her create a naturalist drawing and painting.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

Use a dichotomous key to identify plants or animals.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

Do you think heat can affect a plant's growth rate?

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

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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