Contents

Contents : what do we know about the sea -- what is an ocean -- what are currents and tides -- how are waves formed -- what is on the seashore -- what lives in the sea -- what is in the ocean depths -- what is a coral reef -- how do we travel by sea -- how do we use the sea -- how do we enjoy the sea -- what sea legends are there -- how do we care for the sea -- what is the sea's future -- index.