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Complexity level:
6
Project cost ($):
10
Time required:
6 hours for sunlight exposure, 24 hours incubation period
Material availability:
Tap water or rain water are acceptable sources of water. Agar plates are available at school biology laboratories.
Safety concerns:

Students must take personal safety steps by wearing gloves, mask and goggles before starting the experiment. Disinfectants should be available for standby in case of bacterial contamination. Teachers should be over watching students at all times during the experiment in case of any accidents. Students with respiratory problems should refrain from doing this experiment.