This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Spend an afternoon outdoors and add a personal touch to clothes or other items of fabric by learning how to tie-dye.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

This experiment investigates if small changes in your diet can alter your basal body temperature.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Encourage a bit of mystery and intrigue by teaching your clever kid how to create and use secret codes.

Create a face of a person or animal on a small terra cotta flower pot and grow herbs or a flowered plant for their hair! As the herbs grow, the hair grows.

Get kids excited about gathering their school supplies by teaching them how to make their own writing supplies!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Will male or female hair grow faster? Find out in this science fair project idea!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Ever wonder how those kooky kazoos work? Get to know the science behind this silly instrument by making your very own kazoo!

Start thinking about how the internet works by assembling an Ethernet cable of your own!

Check out this cool and free middle school science fair project idea on how to make a solar oven.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

Little hands and feet can be a big help when learning how to measure! In this activity your preschooler will practice using a ruler and writing numbers.

Learn how to make a mustache with these simple instructions. See how to make a mustache on a stick for Halloween, costume parties, or dress up.

Skip store-bought jewelry and show your stylish kid how to make her own beaded bracelets.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Explore the effect of wind speed on the burning rate of a candle.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.