Curated OER
Infection Wars
Students explore how our bodies fight infection. Using a microscope, they observe red blood cells, white blood cells and different bacteria under a microscope.
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.