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Project title Insects and the germs they carry Featured science projectScience project video
Difficulty Level High school
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This science fair project was done to determine the amount of germs carried by different types of insects. The experiment was done using ants, cockroaches, flies and beetles. 

Instructions preview
1. For this science fair project, the independent variable is the type of insect used – the ant, cockroach, fly or beetle. The dependent variable is the size of bacteria colony that grows in each petri dish. This is determined by measuring the approximate diameter of the colony with a ruler. The constants (control variables) are the room temperature, the amount of sunlight, the garden from which the insects are obtained, and the agar preparation. 2. The 4 petri dishes are filled with agar and stored in a refrigerator. The petri dishes are brought to room temperature before the .....
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