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Solar System 3rd Grade Katonya Beaubouef Solar System • The sun and all the objects that orbit around it. Orbit • A path that an object takes as it moves around the sun. Planet • A large body of rock or gas that orbits around the sun. Asteroid • A large piece of rock or metal that orbits the sun. Different asteroid belts in our solar system Comet • A ball of dust and ice that orbits around the sun. The Sun • • • • Center of solar system A star – ball of hot glowing gas Very hot and large All the planets orbit around it. Name the 4 inner planets in order from the sun. • • • • Mercury Venus Earth Mars Name the 5 outer planets in order from the sun. • • • • • Jupiter Saturn Uranus Neptune Pluto How are the inner planets the same? • Smaller and warmer • Have rocky surfaces • Have no more than 2 moons How are the outer planets the same? • Made mostly of frozen gas • Larger and colder • Have more than 2 moons What planet is the largest? When is a comet visible from Earth? • A comet is visible when it passes close to the sun.