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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.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

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

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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.

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

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!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

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!

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

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.

Introduce your child to science with something they see everyday--their shadow!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

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 math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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