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Making your own glass cleaner is easy, effective and inexpensive!

This science fair project idea explores whether talking to a plant will help it grow.

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

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

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

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

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

An home science experiment for older students that teaches about the science behind heat.

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.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Give your budding young observers a chance to discover simple machines at use in their own home.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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!

This science fair project idea experiments with spinning color wheels and optical illusions.