The movement of the moon and the occurrence of the tide and the ebb phenomenon
The Moon’s rotation around the Earth
The Moon rotates around the Earth in a circular path every 28 days. The Moon appears in the lunar month (The Moslem calendar) in different phases.
When the Moon rotates around the Earth, The Moon area that reflects the sunlight changes to form the phases of the Moon.
So, The rotation of the Moon around the Earth causes the occurrence of the Moon phases during the lunar month.
We notice that the Moon phases begin with crescent, half Moon (half of the Moon is shiny), full Moon, then its other part becomes shiny, then changes into a crescent.
|The Moon’s rotation around the Earth is every 28 days.|
The solar year equals 365 and quarter days, but the lunar year equals 354 days, What is the reason that makes the Moon rotates around the Earth in a certain circular orbit?
The tide and the ebb phenomenon
The tide is the rise of the water level in the water surfaces to cover the seashores, The maximum rising of the water level (tide) is in the half of the lunar month (at the full moon phase), The ebb is the return back of the water to its normal level after the tide.
The benefits of the tide and the ebb
They clean the coasts as during the tide and the ebb, the water of the seas carries the wastes from the coasts to the bottom of the sea, where they are settled.
The water currents resulted from the tide and the ebb help the ships and the boats to move through the shallow water paths.
The bad effects of the tide and the ebb phenomenon
It causes some bad effects such as decaying of the beaches.