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

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

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.

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!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

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!

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.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

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

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

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

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.

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