sphere- graph-

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Across
  1. 3. A famous person signing his/her name
  2. 4. The solid part of the Earth
  3. 6. Air and climate that surrounds the Earth
  4. 9. Having a spherical shape
  5. 10. Our population
  6. 11. A message sent long distance
  7. 14. The water surrounding the Earth
Down
  1. 1. Study of handwriting (or graphs)
  2. 2. Part of the Earth's surface where living things are
  3. 5. Half of the Earth
  4. 7. The visible part of the sun
  5. 8. Writing in fancy handwriting
  6. 12. A very common mineral that you can write with
  7. 13. A paper or book about one thing
  8. 15. Writing 5-8 sentences on one topic