Published in 2018 by Britannica Educational Publishing a trademark of Encyclopædia Britannica Inc in association with The Rosen Publishing Group Inc 29 East 21st Street New York NY 10010 Copyright 2018 The Rosen Publishing Group Inc and Encyclopædia Britannica Inc Encyclopaedia Britannica Britannica and the Thistle logo are registered trademarks of Encyclopædia Britannica Inc All rights reserved Distributed exclusively by Rosen Publishing To see additional Britannica Educational Publishing titles go to rosenpublishing com First Edition Britannica Educational Publishing J E Luebering Executive Director Core Editorial Mary Rose McCudden Editor Britannica Student Encyclopedia Rosen Publishing Amelie von Zumbusch Editor Nelson Sá Art Director Nicole Russo-Duca Designer Cindy Reiman Photography Manager Karen Huang Photo Researcher Library of Congress Cataloging-in-Publication Data Names Wolny Philip Title Geologists at work Philip Wolny Description New York Britannica Educational Publishing In association with Rosen Educational Services 2018 Series Scientists at work Audience Grades 1-4 Includes bibliographical references and index Identifiers LCCN 2016058558 ISBN 9781680487640 eBook Subjects LCSH Geologists Juvenile literature Geology Juvenile literature Geology Vocational guidance Juvenile literature Classification LCC QE29 W65 2018 DDC 551 023 dc23 LC record available at https lccn loc gov 2016058558 Manufactured in the United States of America Photo credits Cover p 1 iStockphoto com technotr p 4 Jon Wilson Science Source p 5 Louise Gubb Corbis Historical Getty Images p 6 Courtesy of Karen Huang p 7 Mark A Wilson Department of Geology The College of Wooster p 8 Microgen Shutterstock com pp 9 10 AP Images p 11 Encyclopædia Britannica Inc p 12 Konstantina Sidiropoulou Alamy Stock Photo p 13 Vince Streano Corbis Documentary Getty Images p 14 Alexander Iotzov Shutterstock com p 15 NurPhoto Getty Images pp 16 19 Bloomberg Getty Images p 17 ZUMA Press Inc Alamy Stock Photo p 18 phdpsx iStock Thinkstock p 20 nattapon7 Fotolia p 21 MCT Tribune News Service Getty Images p 22 Helen H Richardson Denver Post Getty Images p 23 Igor Stramyk Shutterstock com p 24 Barbara Whitney p 25 James L Amos Corbis Documentary Getty Images p 26 Hawaii Volcano Observatory U S Geological Survey p 27 Jim Sugar Science Faction Getty Images p 28 Universal Images Group Getty Images p 29 dcdebs E Getty Images interior pages background iStockphoto com George Clerk
The Importance of Geologists 4 The Geologist’s Laboratory 6 Kinds of Geologists 8 Paleontologists 10 Seismologists 12 Engineering Geologists 14 Hydrogeologists 16 Mine Geologists 18 Petroleum Geologists 20 USGS Geologists 22 Geothermal Geologists 24 Volcanologists 26 Geology Educators 28 Glossary 30 For More Information 31 Index 32 Contents
The Importance of Geologists G eology is the study of the physical features and history of Earth It is important because it helps us to do many things and it answers many questions we have How did Earth come to have its present shape and form What are the materials in the ground and how do they affect us How can we use them responsibly Scientists who answer these questions are called geologists A geologist in a laboratory takes notes as she looks closely at rock samples through a high-powered microscope 4
Geologists investigate a site near Lake Nyos Cameroon where deadly amounts of volcanic gas were released in 1986 Geologists help find important materials in Earth’s crust such as oil gas and minerals They also predict earthquakes and other natural hazards Geologists figure out where we can safely build things like houses office towers and power plants They also help us save important resources like water Other geologists study the makeup of what is underground including the remains of living creatures that lived long ago VOCAB U LARY Minerals are naturally occurring substances usually taken from the ground They make up Earth’s rocks sands and soils 5
