idk

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Across
  1. 3. - state of matter with definite shape and volume
  2. 4. - energy transferred due to temperature difference
  3. 6. - transition from liquid to gas
  4. 7. - process where heat is absorbed
  5. 8. - transition from liquid to solid
  6. 9. - state of matter with charged particles
  7. 12. - the measure of average kinetic energy
  8. 15. - energy due to motion
  9. 16. - change from gas directly to a solid
  10. 17. - state of matter with no fixed shape or volume
  11. 19. - resistence of liquid surface to external force
  12. 20. - the total energy of particle motion
  13. 21. - transition from solid directly to gas
Down
  1. 1. - state of matter with no fixed shape but fixed volume
  2. 2. - process where heat is released
  3. 5. state - transformation between states of matter
  4. 10. - solids with disordered particle arrangement
  5. 11. - solids with ordered particle arrangement
  6. 13. - transition from gas to liquid
  7. 14. - theory explaining particle motion
  8. 18. - trasition from solid to liquid