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Joelle Shoemaker

on 17 May 2013

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Transcript of THE TIDES

TIDES GRAVITY'S EFFECT Ocean Motion High Tide Low Tide When the moon, sun, and earth line up in a right angle, the bulge that is high tide is much smaller than usual. This is called a neap tide. The sun and moon's gravity causes the tides. The gravitational pull of the sun, however,has less effect on the oceans because it is farther away from the earth than the moon (that's why you hear that only the moon causes waves/tides). High tide is a bulge created by the moon's gravity. At high tide, more of a beach or shoreline is covered with water. During this time, low spots on the beach are filled with waves. Plants and animals live in these low spots, called tidal pools. When low tide comes around, waves will break farther along the beach. Less of a shore is covered with water, and small tidal pools can sometimes evaporate during this time. Low tide is a point between high tide bulges. Areas of low tide occur on opposite sides of the Earth. Neap & Spring Tides Tides are one of the types of ocean water motion. You may also hear tides called "the daily change of local water levels in the ocean.'' High tides & low tides are the different changes of tides throughout a day. By Joelle Shoemaker And when the Earth, moon, and sun get in a straight line, the bulge that forms high tide is larger than usual. This is called a spring tide. All in all, tides are not only interesting, but they play an important part in shaping our world. Thanks for watching!!(:
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