Microbes, Microbes, Everywhere

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Presentation transcript:

Microbes, Microbes, Everywhere

The Good, the Bad, and the Ugly Algae Copepod Amoeba E. coli

Not all Microbes are Bad Yogurt – lactobacilli Bread – Yeast Human gut

But what if the wrong microbes end up in our water?

www.innoafrica.org

Ways to clean water

Your mission: Find a low cost, effective way to clean drinking water

Let’s Try SODIS: Solar Disinfection

Sun Power

Ultraviolet - UV

Infrared - IR

What could be in dirty water?

What could be in dirty water? Algae Copepod Amoeba E. coli

Removing some of the Ugly: Sari filtration Toys: Algae (green), amoeba (blue), copepod (orange) akvopedia.org

What about E. coli?

SODIS Supplies Water from Stephen’s Creek Glass bottles, plastic baggies SODIS table Aluminum foil Fabric for sari filtration Black tarp Box Tape/markers

SODIS Variables Glass bottles vs. baggies Reflective surface vs. black/white surface Placement of the bottles/baggies (standing up or laying flat) Sari filtered vs. non-filtered water ?

Experiment Write your team’s question Write your hypothesis (ex. Does aluminum foil work better than the SODIS table?) Write your hypothesis Set up your three containers One control bottle or baggie (to be put in the control box (no sun) Two containers for your variables LABEL each container with your name and the variable you are testing

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