Matter in our surroundings

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Across
  1. 4. Conversion of liquid to solid on cooling
  2. 6. Anything that occupies space and has mass
  3. 7. mass occupied by a substance per unit volume
  4. 9. nature of matter
  5. 10. Solid form of carbon di oxide
  6. 11. Conversion of gas directly to solid on cooling
  7. 13. state of matter with a definite shape and volume
  8. 15. Smallest form of matter which can exist
  9. 17. change of vapours to liquid
  10. 20. State of matter which has a definite volume but an indefinite shape
Down
  1. 1. The property by virtue of which particles can be brought closer
  2. 2. the ability of a substance to flow
  3. 3. the amount of heat required to convert 1kg of solid into liquid at one armpit
  4. 5. a temperature at which substance begins to melt
  5. 8. Anathor name for melting
  6. 12. Force acting per unit area
  7. 14. S.I unit of temperature
  8. 16. State of matter that has neither definite shape nor definite volume
  9. 18. intermixing of particles of two different types of matter on their own
  10. 19. Evaporation causes cooling