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Copyright © by Harcourt, Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Requests for permission to make copies of any part of the work should be addressed to School Permissions and Copyrights, Harcourt, Inc., 6277 Sea Harbor Drive, Orlando, Florida 32887-6777. Fax: 407-345-2418. HARCOURT and the Harcourt Logo are trademarks of Harcourt, Inc., registered in the United States of America and/or other jurisdictions. Printed in the United States of America ISBN-13: 978-0-15-349148-1 ISBN-10: 0-15-349148-5 1 2 3 4 5 6 7 8 9 10 179 15 14 13 12 11 10 09 08 07 06 If you have received these materials as examination copies free of charge, Harcourt School Publishers retains title to the materials and they may not be resold. Resale of examination copies is strictly prohibited and is illegal. Possession of this publication in print format does not entitle users to convert this publication, or any portion of it, into electronic format.
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Weather Lessons 3–4 Measuring Weather. . . . . . .2 Measuring Temperature . . .3 Measuring Wind . . . . . . . . .4 Measuring Rain . . . . . . . . . .5 Heat from the Sun. . . . . . . .6 The Sun Makes Weather Happen . . . . . . .8 The Water Cycle . . . . . . . .10 Visit The Learning Site! www.harcourtschool.com
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Measuring Temperature You can find out how warm the air is. Thermometers measure temperature. thermometer 3
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Measuring Wind wind vane A wind vane shows which way the wind is blowing from. You can find out about wind. 4
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Measuring Rain The numbers on a rain gauge show how much rain has fallen. rain gauge You can find out how much rain falls. 5
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The Sun Makes Weather Happen Heat from the sun The street may stay warms the street. cool on a cloudy day. 8
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Sunlight warms the land. Then the air above the land warms up. As air warms up, it moves. The air makes the clouds move. Some clouds bring rain. 9
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Rain is part of the water cycle. The water drops in clouds fall as rain Rain and snow or snow. flows into rivers, lakes, and oceans. The cycle begins again. 11
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Vocabulary air, p. 3 thermometer, p. 3 temperature, p. 3 wind vane, p. 4 rain, p. 5 rain gauge, p. 5 energy, p. 6 sunlight, p. 9 land, p. 9 water cycle, p. 10 water, p. 10 12
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Think About the Reading 1. What more would you like to know about weather? 2. How could you find out what you want to know? Hands-On Activity 1. Hold a tissue by the corner. 2. Go outside. Hold the tissue in the air. See which way the wind is blowing. School-Home Connection Tell a family member about different kinds of weather. Talk about the different tools for measuring weather.
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