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.

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

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

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!

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

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

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!

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

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

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

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

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.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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

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

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.