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.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This science fair project idea investigates how color affects temperature.

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

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project collects information on the Internet about yourself and others.

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.

In this experiment a spectrometer is used to analyze the light emitted by burning ion solutions.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

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.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This science fair project idea investigates the relationship between memory and age.

In this science fair project, students test how objects float and sink in liquids of different densities.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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

This science fair project examines how seeds hitchhike on animals and clothing.

Examine whether males or females are more likely to have a higher center of gravity.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.