John Farndon - Project Body

Published in 2020 by Windmill Books, an imprint of Rosen Publishing 29 East 21st Street, New York, NY 10010 Copyright 2020 Miles Kelly Publishing All rights reserved. No part of this book may be reproduced in any form without permission in writing from the publisher, except by a reviewer. Publishing Director: Belinda Gallagher Creative Director: Jo Cowan Editorial Director: Rosie Neave Senior Editor: Sarah Parkin Designers: Joe Jones, Andrea Slane Consultant: Steve Parker Indexer: Jane Parker Image Manager: Liberty Newton Production: Elizabeth Collins, Jennifer Brunwin-Jones Reprographics: Stephan Davis Assets: Lorraine King Cataloging-in-Publication Data Names: Farndon, John. Title: Project body / John Farndon. Description: New York: Windmill Books, 2020. | Series: The project makers | Includes index.

Identifiers: ISBN 9781538392232 (pbk.) | ISBN 9781725393028 (library bound) | ISBN 9781538392249 (6 pack) Subjects: LCSH: Human physiology--Experiments--Juvenile literature. | Human body--Experiments--Juvenile literature. Classification: LCC QP37.F37 2019 | DDC 612.0072--dc23 Manufactured in the United States of America CPSIA Compliance Information: Batch #BW20WM: For Further Information contact Rosen Publishing, New York, New York at 1-800-237-9932 CONTENTS Sun stoppers Model lungs Listen to the beat Enz yme break down Saving blood Where's that letter? Test your reflexes Make a stereoscope Super sound waves Test your taste Make fake muc us OUTSIDE IN Together, your skin, hair, and nails are known as the integumentary system. Skin is waterproof, and shields you from infection. Its also your bodys largest sense organ, providing your brain with vital data about the world. AIR BAGS Every cell in your body needs a continual supply of oxygen especially those in your brain.

Thats why your body has an incredible system for taking oxygen from the air when you breathe in, and why you would die if you stopped breathing. PUMP IT! Your heart is a pump that pushes blood around your body. It beats away inside your chest to keep blood constantly circulating. No cell in your body can survive long without the array of chemicals delivered in the blood. DOWN THE HATCH When you swallow food, it begins a long journey down through your gut. On its way, it is gradually broken down into chemical molecules small enough for your body to absorb and use.

This breakdown process is called digestion. WATER WORKS Besides food and air, your body needs water. You cannot survive more than a few days without it. Your body is more than 60 percent water, and the balance of water is crucial to your survival. PULLING TOGETHER Every move you make depends on muscles. You need them to go for a walk, chew your food, and even when youre fast asleep.

Without them youd just collapse like a puppet with its strings cut. BONE IDOL Bones give your body a strong, rigid, but remarkably light framework called the skeleton. Inside, bones are crisscrossed by a superstrong combination of flexible collagen fibers and stiff honeycomb-like struts called trabeculae. BRILLIANT BRAIN If you could see your brain, you might say it looks like a giant gray walnut. But its actually the most amazing structure, containing hundreds of billions of nerve cells, some of them linked to 25,000 or more others, creating trillions of connections. GET THE MESSAGE Your nervous system is your bodys control system.

Its like a highspeed internet, with neurons (nerve cells) whizzing messages to and fro. Sensory neurons receive messages from the senses, while motor neurons send messages to the muscles to move. ALL EYES Eyes are sometimes compared to cameras. But their picture quality beats even the best digital cameras. They are also much more versatile than any camera they can focus on a speck of dust just inches away or a galaxy far across the universe, and work in both starlight and sunlight.