Easy-1 Please write your answers with lower case(小写)

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Across
  1. 4. The force that attracts objects towards each other
  2. 6. Entertain
  3. 8. The place where you are
  4. 10. A person who is in the same class
  5. 12. the scientific study of plants
  6. 13. Italian capital
Down
  1. 1. Man's best friend
  2. 2. A passenger liner that sank in the North Atlantic Ocean
  3. 3. Refuse to accept
  4. 5. The largest continent
  5. 7. The process of calculating using numbers
  6. 9. Work
  7. 11. The planet we live on