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How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

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

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

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

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

In this project children practice the scientific method while playing with puffy paint.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

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

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!