The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

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

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Find out whether packaged seeds actually do expire in this new science fair project idea.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

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

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

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

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Discover whether a metal will expand under hot water.

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

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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

This easy at-home experiment is a great way to "see" science.