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This science fair project idea explores the fastest average speed a human can talk.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Help your child make a beautiful homemade sandcastle that will last!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

In this science fair project, students make their own rain gauge to measure rainfall.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Make edible amber fossils with your second grader to explore the fascinating world of science!

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

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

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.

How can you tell the difference between a spider and an insect? Your child will find out as he makes a tray of yummy creepy crawly snacks.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!