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.

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

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

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

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.

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.

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

Try this chemistry experiment with your curious kid and get some "shocking" results!

In this fun activity, your child will create their very own solar oven to bake s'mores!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

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.

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

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

This science fair project idea produces varying pitches of sound.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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

This science fair project idea produces sounds by creating vibrations using different objects.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

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