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by Conchita Gomez ILLUSTRATION CREDIT: Phil Wilson PHOTOGRAPHY CREDITS: Cover © The Field Museum, GN89671_53c. 1 © The Field Museum, GNd51700_1c. 2–3 © The Field Museum, GN89671_53c. 4 © Black Hills Institute of Geological Research, Inc. 6–7 © Black Hills Institute of Geological Research, Inc. 8 © Black Hills Institute of Geological Research, Inc. 9 © The Field Museum, GE086127c. 10 © The Field Museum, GNd517001c. Copyright © by Houghton Mifflin 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 or retrieval system without the prior written permission of the copyright owner unless such copying is expressly permitted by federal copyright law. With the exception of nonprofit transcription into Braille, Houghton Mifflin is not authorized to grant permission for further uses of this work. Permission must be obtained from the individual copyright owner as identified herein. Address requests for permission to make copies of Houghton Mifflin material to School Permissions, Houghton Mifflin Company, 222 Berkeley Street, Boston, MA 02116. Printed in China ISBN-13: 978-0-547-02149-2 ISBN-10: 0-547-02149-6 1 2 3 4 5 6 7 8 9 RRD 15 14 13 12 11 10 09 08
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Meet Dino Sue It is May 17, 2000. The doors of the Field Museum in Chicago fly open. Visitors crowd into a large room. They are there to see something big. It is a dinosaur. She is 13 feet high and 42 feet long. Her name is Sue. Where did she come from? How did she get there? Who is Sue? This is what visitors see when they first visit Dino Sue at the Field Museum in Chicago. 2
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How Was Sue Discovered? In the summer of 1990 Sue Hendrickson was hunting fossils in South Dakota. A surprise was waiting for her. One morning she climbed a cliff to get a better look at some huge bones she had spotted. She had found the remains of a huge Tyrannosaurus rex, also called a T. rex. Sue Hendrickson was amazed to find a T. rex. 4
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The bones had been buried deep under rock and dirt. Over millions of years the rock had worn away. How Did Sue Become a Fossil? She died …. Her bones were covered with sand and mud….. The bones hardened into rock. They were preserved. Pressure turned them into fossils. 5
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Hard Work Uncovering the bones was hard work. A team of workers gathered at the location. They used small tools and worked slowly. It took them five days just to remove the 30 feet of rock that covered the bones. The bones were old and weak. 6
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Workers cut the fossils out of rock. Workers had to be careful. As each bone was found, it was cleaned. Then it was labeled and packed. Workers found almost every bone in the dinosaur’s body. She was named Sue, after Sue Hendrickson. 7
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Workers spent 25,000 hours working on Sue’s skeleton. Boxes of Bones The Field Museum in Chicago bought Sue. In 2000 more than 250 boxes of bones arrived there. Museum workers spent two years putting Sue back together. Each bone was cleaned again. 8
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Sue’s skull makes her look like a fierce animal. When they were done, the museum had a nearly complete skeleton of Sue. The skull on Sue is made of plastic. Her real skull is too heavy to be mounted on the body. Sue’s real skull is in a smaller room in the museum. In that room visitors can get a close-up view. 9
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Sue Today Putting Sue together in the museum took time and money. Was it worth it? Yes! Sue provided evidence for scientists. She helped them prove facts about life millions of years ago. She showed them how a T. rex moved and how long it lived. Sue may give clues that answer even more questions in the future. Facts About Sue Scientific Name: Tyrannosaurus Rex Age: 67 million years Length: 42 feet (12.8 meters) Height: 13 feet (4.0 meters) Weight of Skull: 600 pounds (272 kg) Number of teeth: 58 10
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Responding TARGET VOCABULARY Word Builder Make a word web around the word fierce. What other words mean the same as fierce? scary fierce Write About It Text to World Dino Sue was a fierce dinosaur. Write a paragraph that tells about Dino Sue. Use words from the web in your description. 11
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TARGET VOCABULARY buried location clues prove evidence remains fierce skeletons fossils uncovering TARGET STRATEGY Visualize As you read, use selection details to picture what is happening. What word tells you something important and rhymes with shoes? 12
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Level: L DRA: 24 Science Strategy: Visualize Word Count: 394 3.4.17 Build Vocabulary HOUGHTON MIFFLIN Online Leveled Books ISBN-13: 978-0-547-02149-2 ISBN-10: 0-547-02149-6 1032045
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