Site hosted by Build your free website today!  Ocean Facts
Pacific Ocean in the Winter: Photo credit to Leslie P.  The
Oceans Salt water covers more than seven-tenths of the Earth's
surface. We now know that there are high mountains, deep
trenches and volcanoes hidden from sight under the waves.  Ocean
Facts The Pacific, the biggest ocean, is larger than all of the
Earth's land area added together. It covers about 166,241,000 sq
km ( 64,186,000 sq miles ).The deepest place in the sea is in
the Marianas Trench in the Pacific. The water there is 11,033 m
( 36,198 ft ) deep.  Ocean Tides and Currents Tides are rises
and falls in the sea level that occur twice every 24 hours, 50
minutes. They are caused mainly by the moon. When the moon is
overhead, its gravity pulls the water towards it, making the
seas bulge. Currents move water about and it is never quite
still, even in the deepest ocean. Surface currents, mainly
caused by winds, affect only about the top 350 m ( 1,148 ft ) of
water. Warm surface currents flo