This science fair project investigates why the number of visible stars changes from place to place.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

Science fair project that determines what neurons are, what they do and compiles this vital information in an illustrated book.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Science fair project that builds a magnetometer and demonstrate its uses.

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!

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

The goal of this science fair project is to identify the galactic center of the milky way using globular clusters, as found through Google Earth.

Science fair project that explains and demonstrates the parallax principle.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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.

This science fair project idea demonstrates the process of land erosion.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This science fair project determines how age affects the speed that someone can change the focus of their eyes between near and far sightedness.

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

This science fair project idea determines if pancreatic lipase can break down lipids on its own or does it require the assistance of digestive bile salt.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

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