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Across 1. small rocky body which can range in size from hundreds KM to one KM 2. the jupiter like planets: jupiter, saturn, uranus, and neptune.these planets havelow densities and are huge gas giants. 4. largest planet in our solar system 6. an oval 7. group of stars, dust, and gases held together by gravity 8. rocky and metallic materials held together by frozen gases 9. gaseous portion of the planet 10. second largest planet in the solar system 12. planet between earth and mercury 14. describes the view that the sun is at the center of the solar system 19. any earth like planets includes mercury, venus, mars, and earth 20. fourth largest planet 21. scientific study of the universe 22. closest planet to the sun

Down 1. place in the orbit of a planet where the planet is farthest away from the sun 3. this planet has thirteen planets 5. colliding matter formed small irregularly shaped bodies 8. the depression at a summit of a volcano 11. point where moon is farthest from the earth 13. describes the concept of an earth centered universe 15. planet where all people live 16. cloud of gas and/or dust in space. 17. smallest planet 18. has the largest canyon of all planets