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In and on a 200-pound adult, there are about 2 to 6 
pounds of bacteria. Yes, you read that correctly, pounds! The population of 
these important microorganisms is just one fascinating fact readers learn about 
the systems of the human body in this series. A continuation of our popular Fun 
Fact File format, this series provides an overview of the inner workings of the 
body through funny, intriguing, and sometimes gross true facts. Written in an 
accessible tone and with age-appropriate language, the fun facts engage readers 
with life science information they’ll want to share with friends and their 
science teacher alike.
• Diagrams of each body system aid readers’ 
understanding of the science content
• Encourages body literacy in young 
readers
• Fresh, new design to the long-standing series

 
             
             
             
             
             
             
    