How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

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

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

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.

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

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

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

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.

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.

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

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Does your child know that salt water conducts electricity? This simple experiment will show how salt water acts as a conductor to electrical currents.

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

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.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

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.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

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

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.