Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project investigates why the number of visible stars changes from place to place.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

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

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea produces varying pitches of sound.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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 the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Have your child kick off their summer vacation by making a miniature water slide!