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My name is Olivia.

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My name is Joelle.

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My name is Adrian.

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And I'm Olivia.

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We're going to talk about the planet Earth.

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I'm going to talk about curiosities.

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The astronomers, they use the Hubble, the galaxy, and the universe in general.

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And I'm going to talk about the Earth's movements.

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The Earth moves in two different ways.

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The first way is rotation.

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When it moves in its own axis.

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And it takes one day.

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And the second way is revolution.

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That is when it turns around the sun.

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And it takes 365 days and 6 hours sometimes.

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And I'm going to talk about imaginary lines.

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The equator is for describing the places.

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The parallels...

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The most important parallel is the equator.

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The meridian.

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The most important meridian is the Greenwich Meridian.

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I'm going to talk about discovery.

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In 1961, Julius Algarve was the first person to go into space.

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In discovery, he came here.

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In the past, the person thinks the Earth is flat.