6th Grade Earth Science- Space

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Across
  1. 3. Largest Planet
  2. 4. Planet that rotates completely on its side
  3. 7. Earth spinning on its axis
  4. 8. A meteoroid that has hit Earth's surface
  5. 9. Which object's gravity affects tides the most?
  6. 11. When the moon appears to be getting larger
  7. 14. Supported heliocentric model of solar system
  8. 15. Smallest planet
  9. 18. Earth centered model of the solar system.
  10. 19. Earth is a ____ planet (terrestrial)
  11. 21. When the moon appears to be getting smaller
  12. 22. Planet with lowest density and large number of rings.
Down
  1. 1. Sun-centered model of the solar system.
  2. 2. Force that holds all planets in orbiting position around the sun.
  3. 5. Oxygen and ____ mostly make up Earth's atmosphere
  4. 6. Became a dwarf planet.
  5. 7. One complete trip of Earth around the sun.
  6. 10. First country to orbit human around the Earth
  7. 12. Between Mars and Jupiter is an ____ belt.
  8. 13. Created geocentric model of solar system
  9. 16. A planet with similar size and mass to Earth.
  10. 17. Planet closest to the sun.
  11. 20. Created heliocentric model of solar system.