Explorer DEVELOPMENT TEAM
Executive Editor: Richard Easby Creative Director: Karen Thompson Young Explorer Editor: Corinne Rucker Explorer Editor: Brenna Maloney Permissions Editor: Jean Cantu Production Specialist: Dreama Karnes-Bynane
Director Curriculum Product Strategy: Lina Gomez Project Specialist: Erin West Kephart
PUBLISHED BY NATIONAL GEOGRAPHIC SOCIETY
NATIONAL GEOGRAPHIC EXPLORER
Wind and Water at Work
How long did it take for wind and water to wear away this rock? Thousands of years. Look inside to learn more about the forces of weathering and erosion.
PICTURE CREDITS COVER, PAGES 2-3 © ALEX MUSTARD/NPL/MINDEN PICTURES; PAGE 4 (MAPS) JEROME N. COOKSON, NGM STAFF/LOU CROSS/TANYA BUCKINGHAM/ SOURCES: FLORIDA FISH AND WILDLIFE CONSERVATION COMMISSION/USGS; PAGE 5 © ALEX MUSTARD/
NATUREPL.COM; PAGE 6 REINHARD DIRSCHERL/ FLPA/MINDEN PICTURES; PAGE 7, 8-9 DAVE FLEETHAM/DESIGN PICS/GETTY IMAGES; PAGE 7 (INSET) © ALEX MUSTARD/
NATUREPL.COM; PAGES 10-11, 12-15 (BACKGROUND), 13, 14 JIM RICHARDSON/NATIONAL GEOGRAPHIC CREATIVE; PAGES 12-13 © PRESERVED LIGHT PHOTOGRAPHY/AGE FOTOSTOCK; PAGE 15 © SEBASTIAN WASEK/AGE FOTOSTOCK; PAGE 15 (INSET) © DAVID ROSS/
BRITAINEXPRESS.COM; PAGES 16-17 ERIC PHILLIPS/
ICETREK.COM; PAGES 16-17 (LETTERING) LYUTSKEVYCH DAR’YA/SHUTTERSTOCK; PAGES 18, 20-21, 22-23 PAUL HAMEISTER; PAGES 18, 20-21, 22 (BACKGROUND) XONOVETS/ SHUTTERSTOCK; PAGE 19 PETER HERMES FURIAN/SHUTTERSTOCK; PAGE 24 INLOVEPAI/SHUTTERSTOCK.
Find your teacher’s guide, interactive whiteboard lesson, and projectable version online at
NatGeo.org/explorermag-resources
Password: explorer16
Questions about the magazine?
www.NatGeo.org/explorermag
(ISSN 1541-3357) is published seven times during the school year—September, October, November–December, January–February, March, April, May— by National Geographic Society, 1145 17th Street NW, Washington, D.C. 20036. Postmaster: Please send address changes to NATIONAL GEOGRAPHIC EXPLORER, PO Box 37863 Boone, IA 50037-2863. Periodical postage paid at Washington, D.C., and additional mailing offi ces.
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Cover: a manatee 11/16/QGL/1
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