Controlling Water Activity in Food

Curated and Reviewed by Lesson Planet
This Controlling Water Activity in Food interactive also includes:

Food storage matters! Scholars learn how the amount of water in corn can affect its rate of spoilage. They create a control group, then test three corn samples stored in three different locations for water activity. As a result of the activity, pupils gain understanding in the importance of multiple trials and averaging values in gathering accurate data.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Have small groups research the effect of water activity on other foods and report to the class
  • Use as an introduction to an in-class experiment on food storage
Classroom Considerations
  • Suggests first completing the virtual lab Understanding Water Activity 
  • Lab is self-paced and interactive
  • Provides practice with lab techniques
  • None
Common Core