Kids Projects

Testing Gas Laws

The Objective : My goal is to determine the effect of pressure and temperature on the volume of air. I hypothesize that higher temperatures and lower pressure increase the volume of air noticeably, even in common, everyday situations.


Ordinary balloons of several different sizes was used : small, medium, and large.

It was experimented with the effect on volume of taking the balloons underwater and to high altitude, as well as heating them in an oven and cooling them in a refrigerator.

For each experiment, before, during, and after the test, the circumference of the balloon was measured and used to compute the volume.

Every experiment was repeated up to four times for each size balloon.


It was found that balloons increase by 1% in volume per 100 meters of elevation gained, decrease by 6.9% per meter underwater, and decrease by 0.4% per degree Kelvin of cooling.


As expected, the volume of the balloons increased with less pressure or higher temperatures and decreased with more pressure and lower temperatures. The most interesting finding is how large these changes are even under everyday circumstances: small changes in elevation, very shallow water, and typical temperature changes make a significant difference in the volume of balloons.

This project is about the volume of air at different pressures and temperatures.

Science Fair Project done By Emily L. Aiken



<<Back To Topics Page...................................................................................>>Next Topic

Related Projects : Photometric Study of Eclipsing Binary Stars ,Proving Universal Gravitation by Warping Space-Time ,Reflections on Reflection ,Relativistic Stress ,Ruben's Tube ,Seeing Through the Haze ,Selective Isolation and Manipulation ,Semiclassical Method to Predict Helium ,Sink or Float ,Solar Cells ,Sta-Netic ,Study of the Effect of the Curvature of Spacetime ,Testing Gas Laws ,The Mathematics of Sympathetic Vibrations ,The Metal Meltdown ,Tricky Curie ,Which Diameter String Has the Purest Tone ,Will a Guitar String Vibrate Forever





Copyright © 2012 through 2014

Designed & Developed by Freddy