Level: D DRA: 6 Science Strategy: Question Word Count: 101 In the Sk 1.4.16 Build Vocabulary by Ellen Ferris HOUGHTON MIFFLIN Online Leveled Books 1431854 H O UG H T O N M IF F L IN In the Sk by Ellen Ferris PHOTOGRAPHY CREDITS: Cover © Photodisc, (inset) © Dirk V. Mallinckrodt/Alamy; 1 © Brad Perks Lightscapes/Alamy; 2 © Dirk V. Mallinckrodt/Alamy; 3 © Photodisc; 4 © Brad Perks Lightscapes/Alamy; 5 © Mary-Ella Keith/Alamy; 6 © Hein Van Den Heuvel/Zefa/Corbis; 7 © Shutterstock; 8 © Shutterstock; 9 © PhotoDisc; 10 © Stockbyte/Alamy Copyright © by Houghton Mifflin Harcourt Publishing Company All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying or recording, or by any information storage and retrieval system, without the prior written permission of the copyright owner unless such copying is expressly permitted by federal copyright law. Requests for permission to make copies of any part of the work should be addressed to Houghton Mifflin Harcourt School Publishers, Attn: Permissions, 6277 Sea Harbor Drive, Orlando, Florida 32887-6777. Printed in China ISBN-13: 978-0-547-42737-9 ISBN-10: 0-547-42737-9 1 2 3 4 5 6 7 8 0940 18 17 16 15 14 13 12 11 If you have received these materials as examination copies free of charge, Houghton Mifflin Harcourt School Publishers retains title to the materials and they may not be resold. Resale of examination copies is strictly prohibited. Possession of this publication in print format does not entitle users to convert this publication, or any portion of it, into electronic format. Look at the sun. The sun is very hot. 2 Look at the clouds. Clouds can bring rain. 3 Look at the rainbow. Light rain falls before you see a rainbow. 4 Look at the birds. You can see ten birds. 5 Look at the plane. A plane can carry a lot of people. 6 Look at the bat. A bat can fly around at night. 7 Look at the moon. It is big because it is a full