To explore cellular respiration and also to get my students involved in some real-life science, we've been measuring and making observations on these sourdough starters. We had a three day weekend, so I've had the honor of caring for all 12 of them. This is a lot of responsibility that I wasn't prepared for when I lesson planned this 🙄 😆. #science #microbiology #sourdough #sourdoughstarter #scienceteacher #classroomscience