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Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

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.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

Identify vitamin C in fruit juices and to determine which of the following juices contain the most vitamin C

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

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

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.

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!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

This science project researches the correlation between barometric pressure and wind velocity.