Maliah U2W4 spelling crossword

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Across
  1. 2. a pair of earphones joined by a band over head
  2. 4. a straight line passing side to side.
  3. 6. a scientist who conducts research in biology
  4. 8. science instrument that is used to measure air pressure
  5. 11. the continuous line forming
  6. 12. a system for transmitting messages
  7. 16. a device consisting a wheel or disk mounted so it can spin
  8. 17. a method of teaching people to read
  9. 18. a toy consisting tube containing mirrors
  10. 19. a picture made using a camera
  11. 20. a large naturally occurring community of flora
  12. 21. capable of decaying naturally and without harming the enviornment
  13. 23. an account of someone's life written by someone else
Down
  1. 1. transport or be transported across space or distance
  2. 3. an apparatus consisting of a tube attached to mirrors
  3. 5. an instrument for converting sound waves
  4. 7. a metric unit of length
  5. 9. a metric unit of length to 1,000 meters
  6. 10. an optical instrument designed to make distant objects nearer
  7. 13. a harsh discordant mixture of sounds
  8. 14. a pictorial symbol for a word or phrase
  9. 15. make sure to pick up your ______
  10. 22. the science of life or study of life