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Science and Technology #4 Crossword Puzzle

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Words and acronyms related to science, medical terms and general technology.
Author: sw11 - Diff: Harder

ACROSS

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    • Complete Clue List

      Across
      1. Mixture of gases that make up the Earth's atmosphere
      5. Nervous system disease affecting nerve cells in the brain and spinal cord (acronym)
      7. A molecule that is capable of binding to various proteins produced in the blood
      8. Semiconductor component which glows when a voltage is applied (acronym)
      9. Atomic number of hydrogen
      10. Proprietary historical file format that supports data compression (acronym)
      12. Atomic number 10
      15. Basic unit of living matter in all organisms
      17. ___ Messenger, most efficient and secure communication app. by Google
      18. Energy that flows between matter samples because of a temperature difference
      20. Chemical formula for sodium hydroxide
      23. Type of colloid in which hard particles are suspended in a liquid
      25. Symbol for resistivity
      26. Chemical formula for crystalline solid used as a semiconductor and in photo optic.
      27. ___ acid, any inorganic acid e.g., sulfuric acid
      28. Chemical formula for common pigment, sometimes called sachtolith
      29. Special key combination which invokes a trusted login process (acronym)

      Down

      1. Hand tool ___ key used for tightening and loosening
      2. Transmission and reception of electromagnetic waves to audible sound
      3. Luminous astronomical object
      4. Complex gelatinous carbohydrate obtained from seaweeds
      5. Electrode where oxidation occurs
      6. Alloy of iron that contains carbon
      11. Relating to chemical compound containing an NH2 group
      13. Communication between the only living planet in solar system and its satellite (acronym)
      14. ___ ionic equation, depicts only ions actively involved in the reaction
      15. Half human and half horse constellation in southern sky (abbreviation)
      16. Constellations of the zodiac, lying between Cancer and Virgo
      18. S.I. unit for frequency
      19. Smallest constituent unit of matter having the properties of chemical element (plural)
      21. Compounds containing benzene
      22. Computers connected to a network and providing facilities to other computers and their users
      23. ___ wave, waveform with deviation that can be shown graphically
      24. Single-board computer designed by staff of the University of Delft, released in 2000