particle theory

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Across
  1. 2. the smallest possible unit of matter
  2. 6. the tempreture at witch a given solid will melt
  3. 8. an explanation for why things work or how things happen
  4. 9. the way in which heat travels
  5. 10. the flow of heat inside an object
Down
  1. 1. subtances that are made up of only one kind of particle and have a fixed or constant structure
  2. 3. energy that moves from one place to another in a form that can be described as waves or particles
  3. 4. anything that has weight and takes up space
  4. 5. a mixture of two or more subtances that stays evenly mixed.
  5. 7. the tempreture at witch a liquid turns in to a vapor