Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

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.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Here's a fun activity to reinforce the physics concept of stored energy for your middle schooler.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

Learn with makes water molecules work with this fun and easy science activity!

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?

This science fair project idea produces varying pitches of sound.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.