Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

This science fair project idea produces varying pitches of sound.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

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!

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

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

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

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.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.