Curated OER
Don’t Cry Over Spoiled Milk!
Seventh graders explore how milk spoils over time. In this biology lesson, 7th graders discover how pH changes as microorganisms enter the food and multiply. They explain the benefits of pasteurization process.
Curated OER
Microbe Experimentation
Seventh graders study microorganisms in their environments by experimenting with milk products. In this microbes lesson, 7th graders read background information about microorganisms in yogurt and soured milk. Students then follow a...