Science

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Across
  1. 2. tiny bumps on the tongue
  2. 7. process of breathing
  3. 11. largest planet
  4. 12. study of the Earth
  5. 13. bird which has eyes in the front of its head
  6. 14. absorbs sun's UV radiations
  7. 15. Earth orbits around the sun
  8. 18. also called as the food pipe
  9. 19. science that deals with the study of plants
  10. 20. study of earth based on fossils
Down
  1. 1. nature of digestive liquids
  2. 3. sea in which everything floats
  3. 4. number of elements in the periodic table
  4. 5. science that studies animals
  5. 6. largest gas in the air
  6. 8. iron deficiency
  7. 9. study of microorganisms
  8. 10. first layer of atmosphere
  9. 16. process to convert liquid into gas
  10. 17. muscular bag of digestive system