Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

Create a self-portrait from natural materials in this collage craft activity!

This project investigates an interesting question: If one learns to write backwards, is one also able to read backwards?

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

The objective of this science fair project is to understand how to stop the oxidation process from occurring in guacamole.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

This project examines which style of central-air system filter traps the most particles from the air.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Try this arts and crafts activity with your preschooler: make bread from yeast dough to teach her about the science behind bread baking.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This project determines how much the rebound rates of tennis balls change after ten games.