Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

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.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

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!

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

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

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project idea investigates how the shape of an object affects drag.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Word color association is just a fancy way to talk about the way we connect colors with words.

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