Watch the video with guest scientist(s)!  

How can I make an ecosystem for microorganisms?
Join Colm, a biophysicist (a scientist who uses physics to study biology and visa versa), as he creates the perfect habitat for some very small organisms called yeast in a system we often call "sourdough starter."
Materials for kitchen ecosystem:
- dish soap
- jar (or any container w/lid)
- knife
- tablespoon (or any measuring spoon)
- ruler
- flour (or any kind of food)
- water
- paper and pen to record your data
Recommended for middle and high schoolers

Take on the challenge now! 

Check out the links below to guide your experiments and to explore more

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