In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea determines the way in which color affects memorization.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

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

Science fair project that explains and demonstrates the parallax principle.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

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.

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

This science fair project idea explores edible things you didn't know you could eat.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea determines whether the diet and taste preferences of humans relate to their personality.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

In this project students experiment with making music using only glasses of water.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea investigates how images are influenced by changes in light.

The purpose of this science fair project is to build a basic radio.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!