Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, young children notice and track changes in trees throughout the year.

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

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

In this science fair project, students use the streak test to tell minerals apart from each other.

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

Check out this cool science fair project on identifying rocks and minerals for kids.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.