Unit 8: Solar System

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Across
  1. 2. a large body in space, made of gas or rocks, that orbits a star and does not produce its own energy (heat and light)
  2. 5. a group made up of billions of stars, objects that orbit those stars, gas, and dust, held together by gravity.
  3. 6. the curved path of an object around a star, a planet or a moon
  4. 7. rock and iron objects that orbit the Sun, much smaller than a planet. Millions are found between Mars and Jupiter, in the Asteroid Belt. Some are small as a shopping center, others are big enough to fill an ocean and have their own moons
  5. 9. ALL of space and everything in it, including stars, planets, solar systems, galaxies; contains more than a trillion galaxies
  6. 10. a chunk of frozen gases, rock, ice, and dust. They have long orbits around the Sun and they have a tail that always points away from the Sun
Down
  1. 1. the galaxy that our solar system is a tiny part of; it is spiral-shaped
  2. 3. a group of planets, moons, comets, asteroids, dust, gas and other objects that are bound by gravity and orbit a star (the Sun)
  3. 4. a large object in space that is made of gas and produces its own energy (heat and light)
  4. 8. planets closest to the Sun, they are located between the Sun and the Asteroid Belt; Mercury, Venus, Earth, and Mars. These planets are dense and rocky, have a smaller diameter than the other planets, and have thin atmospheres and few moons compared to the other planets
  5. 11. planets farthest from the Sun, found after the Asteroid Belt; called gas giants (made up mostly of gases), don’t have a solid surface, very cold and have many moons and ring systems compared to other planets