This science fair project was conducted to find out how different surface conditions affect atmospheric temperatures caused by the greenhouse effect. The testing was done using a surface of water, sand, black soil and carpet grass.
1. For this science project, the independent variable is the type of base used in the glass jar – water, sand, black soil and grass. The dependent variable is the temperature of the air inside the jar. This is determined by using a thermometer to measure the temperature. The constants (control variables) are the size of the jar, the external temperature and the amount of sunlight received. 2. Five jars are labeled as water, sand, soil and grass. The jars are filled with water (2cm deep), sand and soil according to the labels on the jar. A layer of carpet .....
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