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www.wisegeek.com/how-do-the-tides-work.htm

This creates a low tide because the center of the ocean is bulged causing the ocean to move away from the shore. The Pacific Ocean will bulge in the center on the opposite side of the earth, creating a corresponding tide. If the edge of an ocean is centered under the moons gravitational force then a high tide forms.

science.howstuffworks.com/environmental/earth/geophysics/tide-cause.htm

"Ocean tides are a complicated process that involves the tidal force acting on water that is, as it were, also free to slosh around in the ocean basins," Agnew says. Many beaches on the Gulf of Mexico only receive one high tide per day, a byproduct of restricted water flow.

www.businessinsider.com/how-ocean-tides-work-lunar-gravity-2017-6

An illustration of the moon causing Earth's ocean tides. Shutterstock When teachers explain ocean tides, they frequently describe how the moon's gravity pulls on Earth and all of its water.

www.ducksters.com/science/earth_science/ocean_tides.php

Tides are the rise and fall of the levels of the ocean. They are caused by the gravitational pull of the Sun and Moon as well as the rotation of the Earth. Cycles of a Tide Tides cycle as the Moon rotates around the Earth and as the position of the Sun changes. Throughout the day the sea level is constantly rising or falling. 1. The sea level ...

www.moonconnection.com/tides.phtml

The key to understanding how the tides work is understanding the relationship between the motion of our planet and the Moon and Sun. As the Earth spins on its own axis, ocean water is kept at equal levels around the planet by the Earth's gravity pulling inward and centrifugal force pushing outward.

www.youtube.com/watch?v=3RdkXs8BibE

Ocean’s tides are explained in this video: How the tides work? Why the oceans experience two high tides and two low tides each day? The oceans on the earth's surface are attracted to the moon ...

oceanservice.noaa.gov/education/tutorial_tides/tides02_cause.html

Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). Newton’s law of universal gravitation states that the gravitational attraction between ...

www.youtube.com/watch?v=CTQ6ciHENgI

Adam Hart-Davis uses a biscuit, a pickled onion and an orange to explain how the sun and moon control the tides.

scijinks.gov/tides

In real life, the Earth isn't a global ocean, covered in an even layer of water. There are seven continents, and that land gets in the way. The continents prevent the water from perfectly following the Moon's pull. That's why in some places, the difference between high and low tide isn't very big, and in other places, the difference is drastic.

en.wikipedia.org/wiki/Tide

Eugene I. Butikov: A dynamical picture of the ocean tides; Tides and centrifugal force: Why the centrifugal force does not explain the tide's opposite lobe (with nice animations). O. Toledano et al. (2008): Tides in asynchronous binary systems; Gaylord Johnson "How Moon and Sun Generate the Tides" Popular Science, April 1934