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.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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.

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

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.

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

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

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

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.

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

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

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

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.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

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.

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?

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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

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!

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.

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

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

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