In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Science fair project that cultivates slime mold and monitors the stages of its development.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Celebrate April showers with a springtime arts and crafts activity: make sparkly, shiny raindrops with your kid.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Make a lei and bring a touch of the tropical lifestyle into your home!

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

This science fair project idea determines the probability of a coin landing heads or tails.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

Are you able to endure long periods of exercise? Find out if snorers can exercise longer than non-snorers.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Have your child try this classic experiment that demonstrates circular motion using a bucket and rope. Be careful, you might get soaked!