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Forgotten 19th Century Inventions Crossword for Middle School is a hard crossword puzzle with 20 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Forgotten 19th Century Inventions Crossword for Middle School
Challenge your vocabulary with this hard crossword puzzle focused on deep, specialized terms from forgotten inventions of the 19th century. Perfect for middle schoolers exploring historical technology.
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Across
  • 1. Chemical blueprint printing method predating modern photocopy
  • 2. Device creating 3D image perception from two photos
  • 3. Coating metal objects by electrical deposition
  • 6. Long-distance communication method via electric signals
  • 7. Gas used for lighting before electric bulbs became widespread
  • 8. Medium allowing electricity flow in batteries and cells
  • 15. Early sound recording and playback machine by Edison
  • 17. Instrument measuring wind speed, invented in 19th century
  • 18. Rider of a two-wheeled vehicle gaining popularity late 1800s
Down
  • 4. Highly flammable compound used in early photography and propellants
  • 5. Mechanical calculator invented in the 1800s for basic arithmetic
  • 9. Device from the 1800s used for portable light, often oil-fueled
  • 10. Navigational instrument relying on a fast-spinning rotor
  • 11. Relates to controlled fire or explosive chemical devices
  • 12. Describes early experimental boats lacking directional steering
  • 13. Printing process based on repulsion of oil and water
  • 14. Machine generating continuous electrical current mechanically
  • 16. Science of extracting and working with metals, advanced in 19th c.
  • 19. Device converting heat to electrical energy, used in early sensors
  • 20. Device that measures electric current through chemical action
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