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What Happens When I Yawn?

What Happens When I Yawn?( )
Author: Schwinn, Aleaha
Series title:My Body Does Strange Stuff! Ser.
ISBN:978-1-4339-9357-2
Publication Date:Aug 2013
Publisher:Gareth Stevens Publishing LLLP
Book Format:Hardback
List Price:USD $25.27
Book Description:

Why do people yawn? Is it because we need oxygen? Or do we yawn to cool off our brain? The answer is, scientists arent totally sure just yet, but they have many great theories. The vibrant photographs and diagrams in this book help demonstrate what happens in the body when we yawn. The scientific yet accessible text was designed to both interest and enlighten readers of all ages.

Book Details
Pages:24
Detailed Subjects: Juvenile Nonfiction / Science & Nature / Anatomy & Physiology
Physical Dimensions (W X L X H):7 x 7.1 x 0.3 Inches
Book Weight:0.355 Pounds



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