Word Work - Roots

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Across
  1. 2. a minor planet
  2. 3. a drug that is used to kill harmful bacteria and to cure infections
  3. 4. a science that deals with things that are alive
  4. 6. heard or able to be heard
  5. 7. to cause things to agree in time or to make things happen at the same time and speed
  6. 10. a person who travels into outer space in a spacecraft
  7. 12. a large room or building where people gather to hear a speech or watch a performance
  8. 13. arranged in the order that things happened or came to be
  9. 15. giving or providing many desired things
  10. 16. a short performance to show the talents of someone
  11. 17. of or relating to the sound that is heard on a recording or broadcast
  12. 18. something good that is more than what was expected or required
  13. 19. a person who studies stars, planets and other objects in outer space
  14. 20. a biological substance that is dangerous to human beings
  15. 21. not causing death or serious injury
Down
  1. 1. a watch or clock that measures time precisely
  2. 3. extremely large
  3. 5. the story of a read person's life written by another person
  4. 8. continuing again and again for a long time
  5. 9. a description of events in the order they happened
  6. 11. capable of being slowly destroyed and broken down into very small parts by natural process
  7. 14. a group of people who gather together to listen to or watch something
  8. 15. producing good or helpful results or effects
  9. 17. a symbol that is used in printed text
  10. 20. kind and generous