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Tides.

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Presentation on theme: "Tides."— Presentation transcript:

1 Tides

2 Tides

3 What are Tides? Tides are the daily rise and fall of the oceans and other large bodies of water on the Earth.

4

5 Why do tides happen? They are caused by the relationship between the Earth and the Moon. As the Moon revolves around the Earth, its gravity pulls on the Earth’s oceans. Watch this demonstration

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7 When do tides occur? Every 24 hours there are 2 high tides and 2 low tides. Tides occur about every 6 and half hours.

8

9 Watch this demonstration?

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