ALMOST FRIDAY CROSSWORD

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Across
  1. 1. the small particles of all things in the universe
  2. 3. group of cells working together
  3. 5. organ that does the inhalation and exhalation
  4. 7. the system made of blood, blood cells and the heart
  5. 13. system skin, nails and hair belong to this system
  6. 15. a living thing made up of one or more cells and able to carry on the activities of life
Down
  1. 2. the system that enable movement of the body
  2. 4. the place where more bones meet
  3. 6. the system that supports for the body
  4. 8. tissues working together
  5. 9. the molecule that carries genetic information
  6. 10. the pump in our bodies
  7. 11. contact and relax
  8. 12. the system that is helping you solve this puzzle
  9. 14. the system that exchanges CO2 and O2