In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

This science fair project idea compares biodiversity between drops of water.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Here's a simple science activity that will help your child better understand how wells bring us water.

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

This science fair project idea determines what household items are good conductors of electricity.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.