This science fair project was conducted to ascertain how the amount of fertilizer used will affect the growth of plants. The science fair project involved using levels of fertilizer lower and higher than that which was recommended by the manufacturer.
1. For this science fair project, the independent variable is the concentration of fertilizer in the water. The dependent variable is the rate of growth of the radish plants. This is determined by measuring the average height of the 3 plants in each group. The constants (control variables) are the amount of water and the type of plant used.2. The 15 pots are filled with the same amount of soil. One radish seed is placed in each pot. (More than one radish seed can be used in each pot in case some of the seeds do not germinate. Once they .....
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