加州六年级科学教材Earths Resources Lessons 1-2.pdfVIP

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加州六年级科学教材Earths Resources Lessons 1-2.pdf

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EEarthsarths RResourcesesources LLessons 1–2essons 1– 2 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: 978-0-15-349212-9 ISBN-10: 0-15-349212-0 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. Earth’s Resources Lessons 1–2 Lesson 1 How Are Natural Resources Classified?. . . . . . . . . .2 Lesson 2 How Do Energy Resources Differ? . . . . . . . . . . . . 10 Visit The Learning Site! 1 1 HHow Areow Are VOCABULARY NNaturalatural renewable resource nonrenewable resource RResourcesesources fossil fuel CClassified?lassified? The wind farm uses a Once the coal is used up it is renewable resource. The wind gone and cannot be renewed. will blow again. Coal is a nonr