This is a Great lab to demonstrate how bacteria really is Everywhere! You will need agar in petri dishes (easily ordered from any science supply company and even Amazon now!) for students to complete this lab, but that is almost all that you need other than cotton swabs! Please be sure to review safety procedures with students (don't open the lid once your sample is growing, etc.) My students LOVE completing this lab as they love seeing where the "grossest place" in the school is. Have fun!
NOTE: This lab does take a week or even two for your bacteria to grow, depending on your agar, classroom temperature, etc. Please be prepared for that and find the "best place" in your classroom for your bacteria to grow (dark, warm, etc.).
Materials needed: Wax pencil/crayon/sharpie, petri dish with agar, two cotton swabs (per student)
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