Crossword

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Across
  1. 1. - To move trough water
  2. 3. - A person who travels to space
  3. 6. - A room where books are kept
  4. 8. - A person who designs buildings
  5. 10. - A feeling of great happiness
  6. 11. - To repair something broke
  7. 13. - A journey to discover something
  8. 15. - To make something less difficult to understand
  9. 17. - A large body of salt water
  10. 18. - A sudden bright flash during a storm
Down
  1. 2. - Something you wear on your wrist to tell time
  2. 3. - A person who writes books
  3. 4. - To speak very quietly
  4. 5. - The opposite of ancient
  5. 7. - A place where planes land and take off
  6. 9. - A building where old objects are displayed
  7. 12. - To look at something carefully
  8. 14. - Not easy; requiring effort
  9. 16. - The season after summer