Who are the masked scientists? Science Fair deadline is coming...have I told you how much I love science fair? This may be a valuable experience for a child but it is guaranteed to drive a mother mad! The subject is; What effect does the acidity (vinegar) of the liquid(milk) have on the growth of bacteria(yogurt)? Sounds intriguing? Stay tuned we'll have the answer in.... days. Each step takes 24 hours, so we are waiting with bated breath to see the growth on those wonderful petri dishes sitting in the incubator (oven with light on).