Vocab Unit 9

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Across
  1. 4. a person who loves or collects books
  2. 5. capable of being slowly destroyed and broken down
  3. 6. the story of a person's life written by someone else
  4. 7. the process in which a plant turns water and carbon dioxide into food when the plant is exposed to light
Down
  1. 1. a US city founded by William Penn
  2. 2. a tiny particle of light or electromagnetic radiation
  3. 3. a wealthy person who gives money and time to help make life better
  4. 5. a science that deals with things that are alive