Across
- 2. the phase change of gas to liquid
- 4. releases heat
- 6. travels from the warmer substance to the cooler one
- 7. the building blocks of matter
- 10. loosely packed particles
- 12. the phase change of solid to gas
- 14. takes in heat
- 15. _____ __ ______ depends on both temperature and pressure
- 19. the phase change of liquid to gas
- 20. no definite volume and moves freely
Down
- 1. 23 degrees Celsius
- 3. the phase change of solid to liquid
- 5. the phase change of gas to solid
- 8. ____ helps a reaction take place
- 9. the phase change of liquid to solid
- 11. if matter has more of this, the particles will move faster
- 13. solids, liquids, gases, and plasma are...
- 16. definite shape and definite volume
- 17. electrically charged particles and extremely high energy levels
- 18. anything that has ____ takes up space