Vocabulary review 9th grade

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Across
  1. 2. A person who travels in space
  2. 8. Childlike in behavior or appearance
  3. 10. To be able to pay for something
  4. 11. To shine brightly
  5. 12. A planet outside our solar system
  6. 14. The remains of an ancient organism
  7. 16. The act of finding something new
  8. 17. A long, narrow, cylindrical object
  9. 18. To give something for free
  10. 21. The outer layer of a celestial body
  11. 22. The state of being precious
  12. 24. A public notice or announcement
Down
  1. 1. The attention given to something
  2. 3. A person who studies the mind and behavior
  3. 4. Similar to Earth
  4. 5. An estimate of income and expenditure
  5. 6. A good effect or result
  6. 7. The degree of excellence of something
  7. 9. To keep safe from harm or loss
  8. 11. The bony framework of a body
  9. 13. Forever and ever
  10. 15. Something kept hidden
  11. 19. A scientist who studies fossils and ancient life
  12. 20. A person who studies human history and prehistory
  13. 23. A scientist who studies celestial objects