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.

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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 in which you will learn more about the natural world by preserving and identifying different animal tracks.

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 experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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!

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.