Combat ocean acidification with bubbles. Young engineers create a system that reduces the acidity of water. Dry ice in water helps simulate ocean acidity, and blowing bubbles into the water results in a gas exchange that neutralizes the...

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.

Young scholars study acidic and alkaline balance. In this acid and pH levels lesson, students read information about pH, the formation of acid rain and its impact on environments. Young scholars then complete an experiment to learn...