How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea determines if the color of light affects the growth of plants.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science fair project teaches students about wilting and browning of salad greens.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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!

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