The document summarizes key facts about the planets in our solar system as well as other celestial bodies. It discusses how our sun is one of millions of stars orbiting the center of the Milky Way galaxy, which itself contains billions of galaxies. It then provides details on each of the eight planets - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune - listing their distances from the sun, temperatures, sizes, and notable features. It also briefly discusses Pluto.
2. Solar systems, galaxies and the Universe OUR SUN is one of millions of stars that orbit the centre of… THE MILKY WAY, which is one of a billion galaxies that orbit AND move away from the centre of… THE UNIVERSE
28. The Earth is kept in orbit by the force of… Gravity … and by the fact that is is moving at a high velocity
29. Gravity also keeps the moon in orbit around the Earth. The moon orbits the Earth every… … month (28 days)
30. As the Earth orbits around the Sun, it also spins on its own axis
31. At any time, half of the Earth faces the sun and therefore receives light. The other half faces away from the Sun, and so receives very little light. This part is in night . This part is in day .
32. What causes the Earth’s seasons? As the Earth orbits the Sun, when its axis tips towards the Sun, the weather gets warmer . When it tips away , the weather gets colder , causing the Earth’s seasons.
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36. The Earth is divided up into the northern hemisphere and the southern hemisphere: Equator Northern hemisphere Southern hemisphere