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.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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

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!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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

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