Chemistry Project

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Across
  1. 2. the random movement of particles from high to low concentration.
  2. 5. the process by which particles spread evenly in a medium.
  3. 6. the energy gained by particles as temperature increases.
  4. 7. the smallest unit of an element.
  5. 10. the negatively charged subatomic particle.
  6. 11. the closely packed, regular structure of solids.
  7. 12. a pure substance made of two or more elements chemically combined.
  8. 17. the change of state directly from solid to gas.
  9. 19. the process where liquid changes to gas at 100 °C.
  10. 20. the point where a liquid changes to gas.
Down
  1. 1. the change of state from gas to liquid.
  2. 3. a mixture of substances not chemically combined.
  3. 4. the temperature where melting happens in reverse.
  4. 8. the type of curve showing temperature vs. time when heating.
  5. 9. the neutral particle found in the nucleus.
  6. 13. the positively charged subatomic particle.
  7. 14. the central part of an atom containing protons and neutrons.
  8. 15. the change of state from solid to liquid at a fixed temperature.
  9. 16. the state of matter with freely moving particles and no fixed shape.
  10. 18. the state of matter with particles that vibrate in fixed positions.