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This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Construct batteries that make electricity from fruits with this fun science fair project.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Cleaning can be a chore, but not with this sudsy experiment!

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

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?

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea explores the egg's thin membrane.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Determine whether butterflies like to drink sugar water, salt water, or plain water.