My Notebook of Questions : Dinosaurs

Qa International Collectif

Description

Dinosaurs are a fascinating subject. They may be extinct, but they live on in our imagination. Young or old, we still have plenty of questions about these fascinating animals.

Informations

• Publié par: Québec Amérique
• Date de parution: 09 août 2012
• Nombre de lectures: 0
• EAN13: 9782764409077
• Langue: English
• Poids de l'ouvrage: 10 Mo

Extrait

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My Notebook of Questions

Dinosaurs Professor Genius

Why did dinosaurs disappear? What did dinosaurs eat? Do any dinosaurs still exist today?

QA INTERNATIONAL

My Notebook of Questions Dinosaurs

by Professor Genius

10 9 8 7 6 5 4 3 2 1 10 09 08 07 06

Printed and bound in Singapore.

No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage and retrieval system, without written permission from the publisher. © 2006 QA International Inc. All rights reserved. www.qainternational.com

Professor Genius  Dinosaurs  (My Notebook of Questions)  Includes an index

Dinosaurs, My Notebook of Questions was designed and produced by:

ISBN 9782764409077

Library and Archives Canada Cataloguing in Publication

For readers age 7 and up

T 514.499.3000 F 514.499.3010 www.qainternational.com

The characters in Professor Genius’s universe are pure fantasy. Any resemblance to actual living persons is entirely coincidental. Although the facts they contain are accurate, the newspaper articles, old letters, books, and magazines drawn from the professor’s personal collection are all products of the imaginations of the creators of this notebook.

QA Kids a division of QA International 329 de la Commune St. West 3rd Floor Montreal, Quebec H2Y 2E1 Canada

 Contents When did dinosaurs appear?. . . . . . . . . . . . . . . . . . . . . . 5 What did Earth look like during the dinosaur era? . . . . . . . 8 What other reptiles were living on Earth with the dinosaurs?. 12 How do scientists study dinosaurs?14. . . . . . . . . . . . . . . . . . Do we know all the dinosaurs that ever lived?17. . . . . . . . . Why is Brontosaurus also called Apatosaurus . . . . . . . . . 20? . What does a dinosaur eat?. . . . . . . . . . . . . . . . . . . . . . 24 Are dinosaurs classified in families? . . . . . . . . . . . . . . . . . . 28 How did dinosaurs walk?32. . . . . . . . . . . . . . . . . . . . . . . . What was the “bird beak” on dinosaurs used for?. . . . . . . . 34 Which dinosaur had the biggest teeth?. . . . . . . . . . . . . . . 36 Is it true that dinosaurs swallowed stones?. . . . . . . . . . . . 39 Were there very little dinosaurs, too? . . . . . . . . . . . . . . . . 42 Were there herds of dinosaurs? . . . . . . . . . . . . . . . . . . . . 44 Is it true that some dinosaurs had armor? . . . . . . . . . . . 5 1 How did herbivores defend themselves against carnivores?. . 54 What were the plates on the back of Stegosaurus used for?. . 56 What was the fastest dinosaur?59. . . . . . . . . . . . . . . . . . . What color were dinosaurs?. . . . . . . . . . . . . . . . . . . . 6 1 Which dinosaur had the longest neck? . . . . . . . . . . . . . . . 64 What was the horn on the head of some dinosaurs used for? . 67 Did dinosaurs lay eggs? . . . . . . . . . . . . . . . . . . . . . . . . 70 Is it true that Oviraptor 74. . stole the eggs of other dinosaurs? Why did dinosaurs disappear, and when? . . . . . . . . . . . . 77 Could dinosaurs reappear on Earth? . . . . . . . . . . . . . . . 80 Do any dinosaurs still exist today?82. . . . . . . . . . . . . . . . . Where should I look for dinosaur fossils?. . . . . . . . . . . . 85 When were the very first dinosaur fossils found? . . . . . . . 88 Where can I see complete dinosaur skeletons? . . . . . . . . . 9 1

To all those who open this notebook, Have you ever been frightened by Tyrannosaurus ’s powerful jaws or impressed by Diplodocus ’s towering height? Ever since their discovery, dinosaurs have fascinated and attracted us. I invite you to explore the colorful, surprising, and sometimes even touching world of these extinct creatures. When did dinosaurs appear? What color were they? How did they disappear? These are just some of the questions that have been sent to me by curious young readers like you. Over the years, I’ve collected so many questions that I decided to answer them in this notebook. To make it easier for you to understand my explanations, I’ve pasted in some photos and drawings, and drawn some simple diagrams. I hope you enjoy your journey into this faraway, fabulous world. Happy reading! Professor Genius

Deinonychus

MUSEUM OF NATURAL HISTORY

Dear Professor Genius,

I went to visit the Museum of Natural History with my class. The dinosaur fossils were great! Our teacher, Mrs. Ann Fibian, told us that these giant reptiles lived a long, long time ago. Can you tell me exactly when dinosaurs appeared?

Quentin, age 9

My dear Quentin, When I was your age, I spent my summer holidays in Paris. My grandparents lived right near the Museum of Natural History.. I often went there on Saturday afternoons to look at the dinosaur skeletons. Just like you, I was fascinated by these amazing prehistoric creatures. To get back to your question, dinosaurs appeared about 230 million years ago. They were on Earth for a little more than 164 million years. If you know your arithmetic, this means that 5

they disappeared about 66 million years ago. (We humans have been on Earth “only” about 5 million years!) Our planet’s history goes back so far, and it’s difficult for us to picture such long periods of time. Scientists have found it interesting to convert the history of Earth into a single day.. Here is what happens: Earth forms at the beginning of the day, at midnight.

00:00 Earth appears (4,600 million years ago)

04:10 First bacteria (3,800 million years ago)

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22:07 First amphibians (360 million years ago)

21:31 First fish (475 million years ago)

The first living cells appear around 4 A.M. They look a lot like the bacteria we know today.. Life continues to appear, mainly in the oceans, until about 22 h 30. At 22 h 48, the dinosaurs make their appearance. They disappear 51 minutes later, at 23 h 39! Human beings appear at 23 h 59, just one minute before the end of the day! Genius 22:49 First mammals (225 million years ago)

22:48 First dinosaurs (230 million years ago)

22:21 First reptiles (315 million years ago)

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23:12 First birds (150 million years ago)

23:59 Humans appear (5 million years ago)

Dear Mr. Genius, Can you tell me what Earth looked like when the dinosaurs were around? Thank you. Latifa, age 10

Good question, Latifa. Earth at the time of the dinosaurs was nothing like the planet we know today! The dinosaurs lived during an era that scientists call the Mesozoic. This era can be divided into three shorter periods: the Triassic, the Jurassic, and the Cretaceous. Allow me to present each one briefly..

Ginkgo leaves

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