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The Bay of Fundy at high tide
The Bay of Fundy at low tide
Schematic of tides showing (exaggerated) high tides.

A tide is the periodic rising and falling of Earth's ocean surface caused mainly by the gravitational pull of the Moon acting on the oceans. Tides cause changes in the depth of marine and estuarine (river mouth) waters. Tides also make oscillating currents known as tidal streams (~'rip tides'). This means that being able to predict the tide is important for coastal navigation. The strip of seashore that is under water at high tide and exposed at low tide, called the intertidal zone, is an important ecological product of ocean tides. view more...


 KidzTube            
Tides: Crash Course Astronomy #8

Tides: Crash Course Astronomy #8
1942 Tide Turning In World War II In Europe

1942 Tide Turning In World War II In Europe
What Physics Teachers Get Wrong About Tides! | Space Time | PBS Digital Studios

What Physics Teachers Get Wrong About Tides! | Space Time | PBS Digital Studios
What causes high tides on opposite sides of the earth | Dance of the Tides

What causes high tides on opposite sides of the earth | Dance of the Tides
more videos...