Page 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: 978-0-15-349157-3 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.
Page 3
Earth 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
Page 4
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
Page 5
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
Page 6
How Fossils Form fossil of tribolite 1 2 1. A plant or animal dies. It is buried. 2. The soft part rots away. 4
Page 8
Learning from Fossils living fern today fern fossil print in rock Fossils show the size of plants and animals. They show how animals moved. Some fossils show what animals ate. 6
Page 9
Scientists study fossils. They study plants and animals of today. They see how fossils are like living things. fossil of saber- toothed cat C saber-toothed cat of long ago B 7
Page 10
Water, a Natural Resource People use resources to meet their needs. Water is a natural resource. People need water to drink. People use water to bathe and cook. Norris Dam 8
Page 11
Rocks and Soil Rocks and soil are natural resources. People also use rocks to build things. Clay may be made into bricks for building. People use soil to grow plants. rocks used in building brick wall field of strawberries 9
Page 12
Plants and Animals Plants are a natural resource. Cotton from plants is used to make clothes. People eat the parts of some plants. They may burn tree branches as fuel. B apple tree A cotton balls on plant 10
Page 13
Animals are a natural resource. People drink milk from cows or goats. Some people eat the meat of animals. People also use wool to make warm clothes. D sheep DD cap made from sheep's wool B cow B cheese 11
Page 15
Think About the Reading 1. What questions do you have after reading this book? 2. How can you find the answers to these questions? Hands-On Activity 1. List your activities for one day. 2. Next to each activity, write the natural resources you used. School-Home Connection Tell a family member what you have read about fossils. Talk with the family member about how fossils help us learn about Earth’s history.
Affichage des 15 premières pages. Téléchargez le document pour le voir en entier.
Commentaires (0)
Aucun commentaire pour le moment. Soyez le premier !