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This Skin Shield - Explore the Body’s First Line of Defense Against Pathogens activity also includes:
- Video
 - Lab & Experiment
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Make pathogens and the body's defense systems come alive for young biologists in a hands-on activity. Investigators model the skin's protection against infection by observing and comparing changes in a punctured tomato and an intact tomato. The lesson provides an opportunity for class members to engage in a post-activity group discussion.
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Concepts
Instructional Ideas
- Ask participants to write a hypothesis before testing
 - Create a word splash with relevant vocabulary to help scholars connect concepts 
 
Classroom Considerations
- Make allowances for pupils with food allergies
 - Gather materials and prepare the learning space ahead of time
 
Pros
- Adaptable for remote learners
 - Includes opportunities to extend learning
 
