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

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Make a backbone model to explore human anatomy and life science.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this science fair project, students make their own rain gauge to measure rainfall.

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

In this design challenge, your child will create a parachute for a small toy using typical household items.

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.