THE SOLAR SYSTEM
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Our solar system is made up of nine planets that travel in orbit around the Sun. They are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto, together with a ring of asteroids. These are thousands of pieces of rock between Mars and Jupiter.
The Sun is the biggest thing we can see when we look into the sky. It is a huge star that gives out hear and light. The planets produce no light of their own and, like the Earth, get their warmth and light from the Sun.
There are nine planets that circle the Sun. Together they are called the solar system. Our Earth is one of the smaller planets.
|Planet||How far from the Sun||Moons||Orbits the Sun every|
|Million Kilometers||Million Miles|
|Earth||150||93||1||365 1/4 days|
Note: My Nana taught me a rhyme to remember the planets in order from the sun. I'd like to share it with you. If you take the first letter from each word of the rhyme, it will help you remember the planet's name. It goes like this:
My Very Eager Monkey Jumps Straight Under Neptune's Planet
My(mercury) Very(venus) Eager(earth) Monkey(mars) Jumps(jupiter) Straight(saturn) Under(uranus) Neptune's(neptune) Planet(pluto)
Their are 2 m's in this rhyme, but you can remember that Mercury is the first M because Mercury is the closest planet to the Sun, so it is the hottest
The Sun's diameter is 100 times bigger than the Earth's. It is really just a ball of super hot gas. The temperaturs at the centre of the Sun is 15,000,000 degrees centigrade and 5,500 degrees centigrade on the surface.
If the Earth was any nearer to the Sun, it would bee too hot and all life would die out.
You must never look directly at the Sun with a telescope or binoculars as the brightness would damage your eyes.
The Moon is the Earth's satellite. It revolves around the Earth once every 29.5 days, at a distance of about 250,000 km.
The Moon has no light of its own. What we call moonlight is just reflected sunlight.
We always see the saem side of the Moon. Astronauts have taken pictures of the dark side from their spacecrafts.
On the surface of the Moon are great craters and mountain ranges, but no water, air or vegetation. And there is no sign of life, past or present.
Why does the Moon seem to change shape?
As the Moon goes around the Earth, the Sun lights up different parts of it. To us on Earth, the Moon seems to change shape every night. These shapes are called phases and repeat every 29 days.
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