Engineering Innovations and Inventions

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Across
  1. 7. a machine for cutting grass
  2. 10. saving money
  3. 11. energy that is from natural processes
  4. 13. a strong material made by mixing cement
  5. 14. a barrier constructed to hold back water
  6. 17. a machine that converts power into motion.
  7. 20. electromagnetic wave of energy
  8. 21. a motor that makes electricity
  9. 22. design and construction of computers
  10. 23. A mechanical device has parts that move
  11. 24. Communication in video form
  12. 25. process of removing heat
Down
  1. 1. Heating,ventilation, and airconditioning
  2. 2. a device that replaces the heart
  3. 3. printing a 3-dimensional model
  4. 4. device for storing and processing data
  5. 5. Chilling foods
  6. 6. where multiple receivers are made
  7. 8. Groundwater
  8. 9. radioactivity materials
  9. 12. a turbine for generating electricity
  10. 15. protecting natural land
  11. 16. lowering water contamination
  12. 18. scooter motor
  13. 19. Packaging from renewable materials
  14. 22. a thin board containing an circuit