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!

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

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.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

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?

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Help your child celebrate the summer and the sun by making a sandy seascape.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This project compares the strength of one, two, and three-ply toilet paper.

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!

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

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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.

Teach your child how butter is created by shaking up cream the old-fashioned way.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?