Chemistry

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Across
  1. 1. Fastest animal
  2. 4. Large marsupial
  3. 5. Likes to chase mice
  4. 6. Crocking animal
  5. 7. Chemical nature silk fibre
  6. 10. Flying mammal
  7. 13. Suicidal bag
Down
  1. 2. Has a trunk
  2. 3. Power house
  3. 8. Cell centre
  4. 9. mad dog
  5. 11. Rhino virus
  6. 12. Man's best friend