How do organic materials become soil? This science experiment measures what materials biodegrade.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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.

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project idea explores how length affects the weight a bridge can hold.

Make a backbone model to explore human anatomy and life science.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Learn all about balance and motion as your child designs a corn maze!

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.