Isn't the human body incredible? From the complex systems that make it work to the numerous ways we're able to cure illnesses, there are so many fascinating subjects to study when it comes to human biology and health. Are you interested in subjects like how the body works, how best to keep it working, and how to cure everything from a common cough to cancer?

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Have you ever heard about herd immunity and wondered what it means? In this fun activity, you will use a domino model to find out how immunized individuals in a population can protect others from infectious diseases through herd immunity. Written instructions as well as the free template are available on our website at Science Buddies also hosts a library of instructions for over 1,000 other hands-on science…
‘Herd immunity’ or 'herd protection' gives protection to vulnerable people such as newborn babies, elderly people and those who are too sick to be vaccinated. This animation explains how it works. For more information, see
Does your hair break easily? In this fun activity you will measure how much weight one of your hair strands can carry. How strong do you think it is? Written instructions are available on our website: Science Buddies also hosts a library of instructions for over 1,000 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and teachers! Visit us at…
When you get the flu, viruses turn your cells into tiny factories that help spread the disease. In this animation, NPR's Robert Krulwich and medical animator David Bolinsky explain how a flu virus can trick a single cell into making a million more viruses. See and hear the rest of the story on Credit: Robert Krulwich, David Bolinsky, Jason Orfanon Copyright © 2009 NPR. All rights reserved. Visit our website terms of use…
Free science fair projects.