Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
Herd immunity, infectious disease

Introduction

Have you ever wondered why you need to get a flu shot regularly? The vaccine protects you from getting sick with the flu, which is an infectious disease. Such diseases, like the flu or COVID-19, can easily spread through a population and cause a pandemic by making many people sick. Measures such as social distancing can reduce the risk of catching the disease, but real protection only comes from gaining immunity against the disease. This is the reason for vaccinations—to make someone immune to a specific disease. In this activity, you will find out how immunizations can limit the spread of an infectious disease up to a point where the whole population is protected through herd immunity.

Credits

Svenja Lohner, PhD, Science Buddies
This activity is not appropriate for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.

Materials

  • Domino Template
  • Printer
  • Paper
  • Dominoes or small wooden rectangles (about 30)
  • Double-sided tape
  • Red and green stickers (if you are using dominoes)
  • Pencil or pen
  • Optional: Printed Herd Immunity Template (at least 2)
  • Optional: Colored pencils or markers (red and green)
    Materials needed for the 'Model How Herd Immunity Works' activity

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Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
Herd immunity, infectious disease
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