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Greenhouse Effect Experiment

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by

Saby Garza

on 1 November 2015

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Transcript of Greenhouse Effect Experiment

Team #1
Teresa Flores #9
Sabrina Garza #12
Daniela Valerio #25
Samuel Rodriguez #20
Question
How can different surface conditions affect the atmospheric temperatures that are caused by the well-known Greenhouse Effect?
Background Research
The Greenhouse Effect is mainly caused by the absorption of heat by the Greenhouse gasses (like carbon dioxide, methane gases, water vapor, and the ozone), but although all these gases make up about 1% of all gases in our atmosphere, they trap heat and regulate our planet's temperature and climate.
The Greenhouse Effect is important to maintain temperatures that sustain life in our planet; however, too much Greenhouse gas causes what we know as the global warming. Human activities as farming, burning fossil fuels, deforestation, and growing population have led to the noticeable increase of Greenhouse gases into the atmosphere, and thus, to a gradual increase in surface temperatures.
Experiment
1. The independent variable for this science fair project is the type of base we used in the glass jars - sand, soil, and grass. The dependent variable was the temperature of the jars, which was measured by using a thermometer for each jar throughout the whole experiment. The controlled variables are the size of the jars, the internal temperature of the bases, and the amount of sunlight received.

2. Three jars are labeled as sand, soil, and grass, each with their respective base will be left out where the sunlight can affect them. The jars are filled with the same amount of water (3 cm deep).

3. A thermometer is inserted inside each jar, approximately in the center of the jar.

4. The three jars are placed directly under the sunlight for an hour, and a temperature reading will be taken every 10 minutes and recorded in a chart.
What did we learn?
Without the greenhouse effect, earth would not absorb any energy, thanks to greenhouse, the earth is heated and maintained in warm temperatures.
Observation
Greenhouse Effect Experiment
Conclusion
The hypothesis that the "Grass" jar would have the most increase of temperature out of all jars was proven wrong, for it was the "Soil" jar that had the greatest increase of temperature.
Hypothesis
If the 3 transparent glass jars with different substances are exposed to the sunlight for an hour, the "Grass" jar would increase in temperature the most out of the 3 labeled jars.
Video
9C
Throughout the experiment, and as we continued to measured the temperatures of each jar, we observed that the base of soil was the one to have the quickest increase in temperature out of all three jars, and that both the grass and sand jar had the slowest increase in temperature.
Materials
3 trasparent glass jars
3 thermometers
A stopwatch
Tap water
Sand
Soil
Natural grass
Results
In respect to soil's specific heat, the jar containing that material resulted with the highest temperature and absorbed the most solar radiation.
Full transcript