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How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

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

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

Find out which type of sponge holds the most water.

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?

This science fair project idea determines which method of hand cleansing is the most effective.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Investigate which substances are most effective at removing salt from water.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

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?

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

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

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

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

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

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

This science fair project idea investigates how different disinfectants work in killing germs.