Tips for Reading this Book with Children:

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2 Level: D Word Count: th Word: NA Teaching Focus: Phonemic Awareness: Onset and Rime Put the sounds together to make a word: c-an. What is the word? Change the first letter to make a list of other words that belong in the -an family. Tips for Reading this Book with Children: 1. Read the title. Predictions after reading the title have students make predictions about the book. 2. Take a book walk: Talk about the pictures in the book. Use the content words from the book as you take the picture walk. Have children find one or two words they know as they do a picture walk. 3. Have children find words they recognize in the text. 4. Have students read the remaining text aloud. My Science Library Levels K-1 5. Strategy Talk use to assist children while reading. Get your mouth ready Look at the picture Think does it make sense Think does it look right Think does it sound right Chunk it by looking for a part you know 6. Read it again. 7. Complete the activities at the end of the book.

3 I Use Simple Machines by Buffy Silverman Science Content Editor: Kristi Lew

4 Science content editor: Kristi Lew A former high school teacher with a background in biochemistry and more than 10 years of experience in cytogenetic laboratories, Kristi Lew specializes in taking complex scientific information and making it fun and interesting for scientists and non-scientists alike. She is the author of more than 20 science books for children and teachers Rourke Publishing LLC All rights reserved. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical including photocopying, recording, or by any information storage and retrieval system without permission in writing from the publisher. Photo credits: Cover kontur-vid, Cover logo frog Eric Pohl, test tube Sergey Lazarev;; Page 3 and 22 ER_09; Page 5 hamurishi; Page 7 illustrations by Christian Lopetz, Blue Door Publishing, FL; Page 9 and 22 Christina Richards; Page 11 and 23 tr3gin; Page 13 and 23 Sergey Lavrentev; Page 15; DenisNata 22 Blue Door Publishing, FL; Page 17 Stephen Gibson; Page 19, 23 illustration by Alyssia Sheikh, Blue Door Publishing, FL; Page 20 Anatoliy Samara Editor: Kelli Hicks Cover and page design by Nicola Stratford, bdpublishing.com Library of Congress Cataloging-in-Publication Data Silverman, Buffy. I use simple machines / Buffy Silverman. p. cm. -- (My science library) Includes bibliographical references and index. ISBN (Hard cover) (alk. paper) ISBN (Soft cover) 1. Simple machines--juvenile literature. I. Title. TJ147.S dc Rourke Publishing Printed in China, Power Printing Company Ltd Guangdong Province LP - rourke@rourkepublishing.com Post Office Box Vero Beach, Florida 32964

5 Machines are everywhere! Machines make work easier. 3

6 4 Some machines have many parts. Others have few parts.

7 A bicycle is a machine with many parts. 5

8 Simple machines have few or no moving parts. 6 There are six types of simple machines.

9 lever pulley ramp screw wedge wheel and axle 7

10 8 How will he lift this heavy load? He pulls it up a ramp.

11 A ramp is a simple machine for lifting. 9

12 10 Some machines cut. A wedge splits wood.

13 An axe is a simple machine that cuts. 11

14 12 A screw turns. It cuts into wood. It holds things together.

15 A screw is a simple machine that cuts and holds. 13

16 14 Can you lift your friend? You can with a lever!

17 A seesaw is a simple machine for lifting. 15

18 16 Wheels roll. Skateboards ride on wheels. What else has wheels?

19 axle wheel A wheel and axle is a simple machine for moving. 17

20 The piano must go up. A pulley helps lift it. 18 A pulley is a simple machine for lifting and moving.

21 19

22 What machines do you use? 20

23 1. How do machines help people? 2. What happens to a log when a wedge is pushed into it? 3. Can you name two machines that are used for lifting? 21

24 Picture Glossary lever (LEV-ur): A lever is a bar used to lift or move an object. machines (muh-sheenz): Machines make it easier to lift, move, cut, or do other work. pulley (PUL-lee): A pulley is a wheel with a groove that a rope runs over. It is used to lift objects. 22

25 ramp (RAMP): A ramp is a sloped surface. Objects are pushed up and down a ramp. screw (SKROO): A screw is a fastener that looks like a nail, with threads that spiral around it. wedge (WEJ): A wedge is shaped like a V and is used to split objects apart. 23

26 Index lever 7, 14 pulley 7, 18 ramp 7, 8, 9 screw 7, 12, 13 wedge 7, 10 wheel(s) 7, 16, 17 Websites simple_machines/index.php About the Author Buffy Silverman loves to watch animals and find wildflowers. She writes about nature and science from her home in Michigan. 24

27 Comprehension & Extension: Summarize: What is a ramp? What would you pull up a ramp? What is a simple machine that has wheels? Text to Self Connection: What kinds of simple machines have you used? Tell about a time when you used a simple machine that had wheels. Extension: Fold your paper into 4 sections. Draw a picture of a simple machine in each section and label it. Sight Words I Used: have some what you Vocabulary Check: Use glossary words in a sentence. My Science Library Levels K-1

28 Have you ever wondered about the science all around us? Plants grow and change, the Sun rises to warm the Earth, and matter changes from one form to another. Investigate Life, Physical, Earth, and Technology science topics with Rourke s My Science Library. This library explores NSTA science standards with engaging text and colorful images to support readers from kindergarten to third grade. Are you ready to investigate? Books in My Science Library: Apple Trees and the Seasons Day and Night How Do Plants Grow? I Use Science Tools I Use Simple Machines Our Sun Brings Life Run, Swim, Fly Science Safety Rules Solid or Liquid? Stop and Go, Fast and Slow: Moving Objects in Different Ways What Is It Made Of? Who Do I Look Like? A Book about Animal Babies Printed in China