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Project title The effect of vitamin D on plant growthFeatured science projectScience project video
Difficulty Level High school
Project page  Click here to view this science project

Description
This science fair project was done to observe the effectiveness of vitamin D on the growth of plants. The science project involved watering radish, green bean and chili plants with different concentrations of vitamin D solution. 

Instructions preview
1. For this science fair project, the independent variable is the concentration of vitamin D used to water the plants and the type of plant used – radish, green beans and chili plants. The dependent variable is the growth height of the plants. This is determined by measuring the height of the plants with a ruler. The constants (control variables) are the number of plants in the pot, the size of the pot and the amount of soil in the pot. 2. The pots are prepared by filling soil in 30 pots. The pots are labeled as radish 0 .....
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