Whentheweatherishot,yougotoalakeoranocean.
Whentheweatherishot,yougotoalakeoranocean.Whenyouarenearalakeoranocean,youfeelcool.Why?Thesunmakestheearthhot,butitcannotmakethewaterveryhot.Althoughtheairovertheearthbecomeshot,theairoverthewaterstayscool.Thehotairovertheearthrises.Thenthecoolairoverthewatermovesinandtakestheplaceofthehotair.Whenyouarenearalakeoranocean,youfeelthecoolairwhenitmovesin.Youfeelthewind.Andthewindmakesyoucool.
Ofcourse,scientistscannotanswerallofyourquestions.Ifweask,“whyistheoceanfullofsalt?”Scientistswillsaythatthesaltcomesfromrocks.Whenarockgetsveryhotorverycold,itcracks.Rainfallsintothecracks.Therainthencarriesthesaltintotheearthandthenintotherivers.Theriverscarrythesaltintotheocean.Butthenweask,“whathappenstothesaltintheocean?Theoceandoesnotgetmoresaltyeveryyear.”Scientistsarenotsureabouttheanswertothisquestion.