Physical science ! 1. what is botulism? a type of bacteria a type of low acid a disease that comes from ingesting c. bot toxins 2. what advantage does an electronic ph meter have over ph indicator paper? it has greater precision it can measure a larger range of ph values it can measure the ph of both acids and bases 3. how do food scientists use the ph scale? food scientists increase the ph of foods to prevent the growth and reproduction of bacteria while they are stored. food scientists decrease the ph of foods to prevent the growth and reproduction of bacteria while they are stored. food scientists can't change the ph of the food we eat, because it could make us sick.