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This science fair project evaluates if and how eating a large meal affects ability to perform mental tasks.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This project investigates the affect of storage temperature on microwave popcorn.

This experiment will evaluate if chewing gum affects students' test performance.

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

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

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

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

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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.