Why Lesson Planet?
Young scientists or chefs culture yeast to produce yogurt. The materials and a general description of how make yogurt are provided, but there is very little detail otherwise. You could use this as an activity when your biology class is learning about beneficial bacteria, or in a nutrition class when learning about how other organisms help provide food for humans. Either way, you will need to precede the activity with a lecture. Consider creating an instructions sheet for learners to follow.