This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

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

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

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

This science fair project idea investigates how color affects temperature.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

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

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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.