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 Ocean Tides
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Ocean Tides  

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Description: 


The moon's gravitational pull creates the tidal forces on Earth, leading to the regular rise and fall of ocean levels known as high and low tides. These tides are influenced by the moon's position relative to Earth and the sun, resulting in spring and neap tides with varying tidal ranges. 

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Transcription:  


Everything in the universe is attracted to everything else. 

This is due to the force of gravity. 

Earth and the moon are equally attracted to one another and are constantly pulling with equal gravitational force. 

We may not be able to feel it, but this has some interesting effects that we can see each day. 

Since earth and the moon's gravitational pulls are balanced, they see a consistent distance apart. 

However, the moon's gravitational pull has an interesting effect on the oceans on Earth. 

The moon's gravitational force is strongest on whichever side of Earth it is closest to. 

This pulls water in the oceans towards the moon causing the water levels to rise creating a high tide. 

However, the moon is simultaneously pulling earth towards it causing a similar high tide on the opposite side of the planet. 

This subsequently creates low tides in other places on Earth. 

This means that there are two high tides and two low tides every day. 

The tides cycle as the moon rotates around the Earth and as the position of the sun changes. 

Earth also has spring and neap tides. 

Spring tide occurs when the sun and the moon are aligned this creates the highest high tide and the lowest low tide, or the largest tidal range. 

Neap tide occurs during the smallest tidal range. 

This is when the moon is at the first and third quarter phases. 

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Questions: 


1. Why does the moon's gravitational force cause high tides on opposite sides of Earth? 

2. What is the difference between spring tides and neap tides? 

3. How often do high and low tides occur each day?  

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2025-06-25 ¿ÀÈÄ 12:04:13
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