This science fair project idea investigates whether plants can survive being frozen.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This science research project challenges students to think of more effective lobster farming methods.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea provides evidence that air is everywhere and takes up space.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

This science fair project idea explores which fruit molds the fastest.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Discover whether a metal will expand under hot water.