The United States sends 133 billion pounds of edible food to landfills every year. A lesson from the ACS Reaction series discusses the chemical reactions that cause food to change over time. Some reactions make food taste different while others cause harmful chemicals. 

Concepts

food, garbage, enzymes, sugar

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Additional Tags

science

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Instructional Ideas

• Write and balance some of the chemical reactions discussed in the lesson
• Record expiration dates of recently bought grocery items and compare canned, frozen, and fresh items

Classroom Considerations

• Expects a familiarity with enzymes, bacteria, and fungi

• This video is hosted on YouTube

Pros

• Includes diagrams and animations to add clarity to the presentation
• Emphasizes scientific vocabulary throughout the lesson

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.7 RST.11-12.7