Science Puzzle

12345678910111213141516171819
Across
  1. 2. Chief architecture of Indian atomic energy program
  2. 4. Longitudinal waves cannot travel through
  3. 6. Anti-radiation missile developed by DRDO in 2020
  4. 9. National chemistry laboratory is situated in
  5. 10. Kimberley Process
  6. 13. Adding oxygen to form an oxide
  7. 14. Supercooled liquid
  8. 16. Solid CO2
  9. 17. Colloidal gold + molten glass
  10. 18. natural radioactivity
  11. 19. Velocity at which a falling object stops accelerating
Down
  1. 1. Age of fishes
  2. 3. C8H7 N3O2
  3. 5. anti-satellite missile tested by India on 27th March 2019
  4. 7. Substance continually deforms under an applied shear stress
  5. 8. Instrument used to measure force and velocity of wind
  6. 9. Basic unit of light and all other electromagnetic radiation
  7. 11. Catalytic converter are generally made of
  8. 12. Cryogenic engines are used in
  9. 15. city which hosted the Indian science congress in 2020