<正> How much ice did you ever see inone place?An ice tray full?Askating rink full?A pond full?A riverfrozen from bank to bank?That's a lot ofice.But there are places in the worldwhere there is more.Much more.You know how high mountains are.Thereare places where the space betweenmountains is crammed and jammed andpacked full of ice.This kind of ice is called a glacier.