Genre Nonfiction Comprehension Skill Retell Text Features Captions Labels Glossary Science Content Technology Scott Foresman Science 2.13 ISBN 0-328-13807-X ì<(sk$m)=bdiahe< +^-Ä-U-Ä-U Vocabulary Extended Vocabulary engine invent manufacture meteorologist satellite technology transportation vaccine aviators gasoline helicopter helium propane runway Picture Credits Every effort has been made to secure permission and provide appropriate credit for photographic material. The publisher deeply regrets any omission and pledges to correct errors called to its attention in subsequent editions. Photo locators denoted as follows: Top (T), Center (C), Bottom (B), Left (L), Right (R), Background (Bkgd). 1 (B) Bob Burch/Index Stock Imagery; 3 Age Fotostock; 6 (BL) Getty Images; 7 Gamma/Katz Pictures Limited; 8 (B) Bob Burch/Index Stock Imagery; 9 Bettmann/Corbis; 14 (B) Age Fotostock; 15 Gamma/Katz Pictures Limited. Unless otherwise acknowledged, all photographs are the copyright © of Dorling Kindersley, a division of Pearson. ISBN: 0-328-13807-X Copyright © Pearson Education, Inc. All Rights Reserved. Printed in the United States of America. This publication is protected by Copyright, and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to Permissions Department, Scott Foresman, 1900 East Lake Avenue, Glenview, Illinois 60025. 3 4 5 6 7 8 9 10 V010 13 12 11 10 09 08 07 06 05 What did you learn? 1. What are two of the special tasks that helicopters are able to do? Why can they do these things? 2. Why do hot air balloons rise high into the air? 3. You’ve read about different kinds of flying machines in this book. Write to explain how the monoplane by Tess Mason changed to the biplane, which then changed to the triplane. Explain which one wo