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

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

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.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

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

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

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.

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

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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

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

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

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!

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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.

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

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

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!

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

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.