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The Solar System speech. Now when I say universe, youre probably thinking Im referring to the solar system. In fact most people would immediately suggest that the solar system is our universe.

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GCSE/Physics/The Earth and BeyondHello class, Today I’m going to be talking to you about the universe.

Now when I say universe, you’re probably thinking I’m referring to the solar system. In fact most people would immediately suggest that the solar system is our universe. When in reality the solar system is only a speck of our whole universe. You see, the planet on we live on, which is earth, feels like all there is. But actually it is just a tiny planet is a in an incredibly vast solar system. And our solar system is just another member of our milky way galaxy. Our mily way galaxy is believed to be one out of 100 to 200 billion galaxies in our whole universe, although this is just an estimation is has not been or can be proven, for that matter. Even

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As you may already know, our solar system consists of the the sun, the planets which are Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto, it includes the satellites of the planets, several comets, asteroids, and meteoroids. Now just incase you didn’t know, Pluto is no longer considered a planet. According to astronomers, in order for a planet to be a planet it must

1)Orbit the sun-which Pluto does

2)Large enough for gravity to squash it into a sphere-which Pluto has

3) It must have cleared it’s orbit-which it has not

This means that it becomes dominant in it’s region that it orbits in. In other words, it is not merely one of a large number or objects that orbit the sun, but is the prime figure of it’s region.

Since Pluto doesn’t meet the 3rd criteria, it is therefore classified as a dwarf planet.

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-The first living creature in space was the dog Laika in 1947. Sadly it died because of lack of oxygen

-In summer In Uranus, the sun does not set for 20 years. In winter darkness last’s for 20 years and in autumn the sun rises and sets every 9 hours

To conclude this speech, I have some questions to see if you were paying attention:

1)How many planet’s are in our solar system at this very moment?

2) Name them all

3) True or false: Pluto is a planet

4)True or false-Neptune was the god of the underworld

5) True or false- the milky way is one member of our solar system

Well, that looks like that is that. I think I have well explored the topic of the Solar system and I sure hope that you have learned something in your course of reading this. I also hope that you will send this to as many friends as possible so they too will join in your excitement of learning about the Solar System.

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