^Science Fair^

Science fair happened on Wednesday, November 17, 2010. My science fair topic was “Carbon Dioxide Everywhere”. In this project, I compared the amount of carbon dioxide in three different gas sources, ambient air, human breathe, and automobile exhaust. I gathered these gases in balloons, and released the gases through an indicator, Bromthymol Blue Solution, BTB. The color of the indicator changed, and to compare the Carbon dioxide, I needed to drop ammonia in each solution until the solution returned to its original color. The more drops needed to change the color back to its normal condition, the more amount of carbon dioxide there is in the solution. This works, because when the BTB solution is exposed to carbon dioxide, it changes into carbon acid, and ammonia, a base is used to neutralize it. My result was that automobile exhaust had the highest amount of carbon dioxide levels. Taking this further, considering the rising levels of carbon dioxide in the atmosphere, I would suggest that people do green actions, such as recycling and driving smart.