:Vgi] BViZg^Vah AZhhdch) Ä * 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: 978-0-15-349157-3 ISBN-10: 0-15-349157-4 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. Ear th Materials Lessons 4–5 Fossils . . . . . . . . . . . . . . . . . .2 How Fossils Form . . . . . . . . .4 Learning from Fossils . . . . .6 Water, a Natural Resource .8 Rocks and Soil . . . . . . . . . . .9 Plants and Animals . . . . . .10 Fossils stegosaurus fossil of stegosaurus Dinosaurs lived long ago. No dinosaurs live on Earth now. Fossils show what dinosaurs looked like. There are also fossils of other animals. 2 fossil of pterodactyl A pterodactyl fern fossil print in rock Fossils form from plants, too. Fossils are found in rock. A fossil can be a print. It can be a shell or a bone turned to rock. 3 How Fossils Form fossil of tribolite 1 2 1. A plant or animal dies. It is buried. 2. The soft part rots away. 4 3 4 3. The hard part turns to rock. 4. After millons of y