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 \n20(C,B)DK Images;22(T,B)Getty Images,(CL)Rubberbal Productions,(CR)BrandXPictures,(C)Digital Vision  \nISBN 13:978-0-328-52586-7  \n0-328-52586-3  \nISBN 10:  \nCopyright oby Pearson Education,Inc.,or its affiliates.All rights reserved.Printed in the United States of America.This publication is protected by copyright,and permission should be obtained from the publisher prior to any prohibitedreproduction,storage in a retrieval system,or transmission in any form or by anymeans,electronic,mechanical,photocopying,recording,or likewise.For informationregarding permissions,write to Pearson Curriculum Rights &Permissions,One LakeStreet,Upper Saddle River,New Jersey 07458.  \nPearson®is a trademark,in the U.S.and/or in other countries,of Pearson plc or itsaffiliates.  \nScott Foresman®is a trademark,in the U.S.and/or in other countries,of PearsonEducation,Inc.,or its affiliates.  \n# TABLE OF CONTENTS\n\nThe Oceans'Currents  \n5  \nCHAPTER 1  \nThe Oceans6  \nCHAPTER 2  \n# Surface Currents\n\n8  \nCHAPTER 3  \n# Deep Water Currents\n\n14  \nCHAPTER 4  \nSwimming Safely16  \nThe Powerful Ocean23  \nGlossary24  \n④  \nThe Oceans'Currents  \nThe ocean is an incredible and wild place.It can bea lot of fun to swim in,but it can also be dangerous.Have you ever been swimming in the ocean?If so,youhave probably noticed that the ocean's water movesquite a bit.  \nSome beaches have large,powerful waves,whileothers have practically no waves at all.One thing thatall oceans have in common,though,is that their water isalways moving and circulating through currents.  \nA current is a section of water that moves  \ncontinuously in one direction.There are many differentkinds of currents,including deep water currents and ripcurrents.These currents can move very quickly and carryaway things that may be caught in them.  \nThis means that sometimes the water near the shorecan be dangerous to swim in.Other times,the current isnot as strong,and the water becomes safe for swimming.It is important to know how to recognize currents nearthe shore and what do to if you get caught in one.Let'sdiscover how the oceans'currents work and how to swimsafely in them.  \nThe major oceans of the world are the Pacific Ocean,the Atlantic Ocean,the Indian Ocean,and the ArcticOcean.Together,these oceans cover about 70 percent ofEarth's surface.Water is constantly moving among theseoceans through currents.  \nThese currents exist both on and below the surface ofthe water.Surface currents travel along the top layer ofthe sea.They can be more than one hundred meters deep.  \nDeep water currents move below surface currents.They consist of saltier,colder water.  \nOceanic water moves and circulates for a number ofreasons and in many different ways.For example,solarheating causes water to expand,which sets it in motion.  \nTemperature and density also play a role in watermovement.The colder and saltier the water is,the denserand heavier it gets.It sinks tow","cbCaie1EeecJdlls","https://ap.wps.com/l/cbCaie1EeecJdlls","pdf",3008062,28,"English","# The Oceans' Currents\n## Ocean basics and what currents are\n## Surface currents\n## Deep water currents\n## Factors that drive currents\n## Coastal hazards for swimmers","[{\"question\":\"What is a current in the ocean?\",\"answer\":\"A current is a section of water that moves continuously in one direction. Oceans have many kinds of currents, including deep-water currents and rip currents.\"},{\"question\":\"How are surface currents different from deep water currents?\",\"answer\":\"Surface currents travel along the top layer of the sea and can be more than one hundred meters deep. Deep water currents move below the surface and consist of saltier, colder water.\"},{\"question\":\"Which ocean currents near the shoreline can threaten swimmers?\",\"answer\":\"This book highlights lateral currents, rip currents, shorebreak, and backwash as threats at the shoreline. Swimmers should look for these currents before entering the water.\"}]","Swimming Safely in the Ocean - Part 1 - The Oceans' Currents | PDF",1790714714,71]