Unit 2: States of Matter

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Across
  1. 3. The point at which a solid turns into a liquid.
  2. 5. Solid to gas (Example: dry ice)
  3. 7. A measure of hotness or coldness of something measured on a definite scale.
  4. 9. A very hot gas with an electrical charge. Has a lot more energy than the other 3 states of matter.
  5. 11. A device used to measure temperature.
  6. 14. A state of matter with no definite volume and no definite shape; particles are far apart and move quickly.
  7. 16. The temperature at which a liquid turns into a solid. (o degrees celsius / 32 degrees fahrenheit)
  8. 18. To make or become solid, compact, or hard.
  9. 20. Gas to liquid (Example: water on mirror, dew on grass, rain forming in clouds)
Down
  1. 1. A condition that is changed in an experiment.
  2. 2. Change in the state of matter. (solid - liquid - gas)
  3. 4. The amount of space an object or substance takes up.
  4. 6. The temperature at which a liquid turns into a gas. (100 degrees celsius / 212 degrees fahrenheit)
  5. 8. The amount of matter in an object.
  6. 10. Anything that takes up space, has mass, and makes up the observable universe.
  7. 12. Liquid to gas (Example: puddle disappearing, steam from shower)
  8. 13. A state of matter with a fixed shape and volume; particles tightly packed and vibrate.
  9. 15. Gas to solid (Example: snow forming in clouds, frost)
  10. 17. A state of matter with a definite volume but no definite shape; particles close but can slide past each other.
  11. 19. The transfer of thermal energy; to heat something thermal energy is added.