The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

Is your child a young ornithologist in the making?

Learn about nature by making your own mini moss garden.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Introduce your child to science with something they see everyday--their shadow!

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

This project examines what types of objects burn and which burn faster and cleaner.

This project investigates whether chewing gum can help a majority of people with focus and concentration.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Hunt for natureâs treasure, the many different products made by trees!

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

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

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

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.