Science

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Across
  1. 1. the strength and vitality required for sustained physical or mental activity
  2. 3. relating to the nucleus of an atom
  3. 7. the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction
  4. 10. an offspring of two animals or plants of different subspecies, breeds, varieties, species, or genera
  5. 11. a chemical element with symbol U
  6. 13. a unit of power equal to 550 foot-pounds per second
  7. 15. sending out light; shining or glowing brightly
  8. 17. the ability to do something or act in a particular way, especially as a faculty or quality
  9. 21. relating to the whole world; worldwide
  10. 22. the branch of physical science that deals with the relations between heat and other forms of energy
  11. 24. a machine that transforms rotational energy from a fluid that is picked up by a rotor system into usable work
  12. 27. working or produced by machines or machinery
  13. 28. relating to or resulting from motion
  14. 29. any substance that has a defined composition
  15. 32. having or showing the capacity to become or develop into something in the future
  16. 33. closely resembling an original
Down
  1. 2. operating by or producing electricity
  2. 4. convert into reusable material
  3. 5. one of the oldest and largest sources of renewable energy
  4. 6. a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas
  5. 8. not able to be renewed
  6. 9. process used by plants and other organisms to convert light energy into chemical energy
  7. 12. a person or thing that generates something
  8. 14. mixture of volatile, flammable liquid hydrocarbons derived from petroleum and used as fuel for internal-combustion engines
  9. 16. able to resume its normal shape spontaneously after contraction, dilatation, or distortion
  10. 18. matter from recently living organisms which is used for bio energy production
  11. 19. a glass building in which plants are grown that need protection from cold weather
  12. 20. a viscous liquid derived from petroleum, especially for use as a fuel or lubricant
  13. 21. Geothermal energy is heat within the earth
  14. 23. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
  15. 25. prevention of wasteful use of a resource
  16. 26. molecule or ion capable of either donating a proton
  17. 30. a sedimentary deposit composed predominantly of carbon that is readily combustible
  18. 31. relating to or determined by the sun