This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Start your toy engines -- this is going to be a fast and friction-filled race!

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

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!

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?

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.

Use the textures found in nature to create your own stationery! This fun, outdoor activity will no doubt inspire your child's creative side.

This experiment investigates whether paper color influences people's ability to remember the information that they read.

Find out if most people can distinguish the difference between tones on different instruments.