final project

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Across
  1. 2. freeze is also known as heat death
  2. 4. molecules formed by a atoms
  3. 6. era matter that began to dominate the affect of radiation pressure
  4. 7. degree of substance
  5. 8. light or radiation that that carries energy
  6. 11. temp in the size of degrees Celsius
  7. 12. a negativity charge in a proton
  8. 13. matter a space that could take any of several forms
  9. 15. in the past or present and future
Down
  1. 1. speed speed this also a rate informal
  2. 3. the basic unit of chemical element
  3. 5. the displacement spectral lines toward longer wavelengths
  4. 9. heat or substance or object
  5. 10. shift a frequency due to Doppler affect
  6. 14. crunch high density and temp