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Solar System

Solar System. Mrs. P!. What is the Solar System?. The solar system consists of the sun and all the planets that orbit around it. What does orbit mean? The path an object takes as it moves around another object in space. THE SUN.

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Solar System

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  1. Solar System Mrs. P!

  2. What is the Solar System? • The solar system consists of the sun and all the planets that orbit around it. • What does orbit mean? • The path an object takes as it moves around another object in space.

  3. THE SUN • The sun plays a very important role in our solar system. It is not a planet, but a big hot ball of gas… just like other stars. Gravity on the Sun is so strong, that it keeps all of the planets in orbit. • Fun fact: the sun is about 838,900 miles across! This means one million Earth’s could fit inside it!

  4. Mercury is the closest planet to the sun. It will orbit the sun in about 88 Earth days. Mercury has a rocky surface with many craters, and it is about 3,100 miles across. Fun fact: In the daytime, Mercury’s surface is so hot it can melt lead! Mercury

  5. The second planet from the sun is Venus. It also has a rocky surface and is constantly covered with thick clouds. Venus makes its way around the sun in 225 Earth days. It is over twice the size of Mercury, measuring at 7,500 miles across. It is the hottest planet in the solar system. Fun fact: Venus rotates backwards! Venus

  6. Earth is the third planet from the sun. We are about 7,920 miles across and the majority of the Earth’s surface is water. We have one moon, and it takes 365 ½ days to orbit the sun. Fun fact: Earth is the only planet known to support life! Greetings Earthlings!

  7. Planet Mars • Mars is about 4,200 miles across and covered with volcanoes, canyons, and red dust. Just one year on Mars would be like two Earth years. • Fun fact: Mars is home to the largest volcano in the solar system! It is called Olympus Mons.

  8. The Inner Planets • The four planets we just reviewed are known as the inner planets. Can you list them in order? • The inner planets are closer to the sun, making them warmer than the outer planets. They all have rocky surfaces and are smaller than the remaining planets we are about to discuss.

  9. The Outer Planets • The outer planets are made mostly of frozen gases and they are much further from the sun. This makes their surface cooler than the inner planets. They are all larger than the inner planets. They also have many moons and some even have rings.

  10. Jupiter does not have a solid surface, but is made of a cold, slushy gasses. It takes Jupiter about 12 Earth years to make a full orbit, and it is about 88,900 miles across. Fun fact: Jupiter is known for its Great Red Spot, which is a huge hurricane like storm on Jupiter’s surface. Jupiter

  11. Saturn • Saturn is about 75,000 miles across and is made entirely of frozen gases. It takes about 29 Earth days for Saturn to orbit the sun. • Fun fact: Saturn has a large system of rings that reach 260,000 miles from its surface.

  12. Uranus • Uranus is the 7th planet from the sun. It is 32,000 miles across and, like Saturn, also made of frozen gases. Saturn orbits the sun in about 84 Earth years. Fun fact: Uranus rolls on its side as it orbits the sun.

  13. Neptune • Yet another planet made of frozen gases, Neptune is about 30,400 miles across and is the 8th planet from the solar system. It orbits the sun in about 165 Earth years. Fun fact: Pluto crosses Neptune’s orbit for 20 year periods. When this happens, Neptune becomes the farthest planet from the sun.

  14. Pluto • Pluto is the farthest planet from the sun. The planet is made of ice, and it even has a moon that is almost as large as it is. It takes 248 Earth years for Pluto to orbit around the sun. • Fun fact: Pluto is the smallest planet in the solar system, measuring at 1,500 miles across.

  15. That’s Our Solar System!

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