Chemistry Final Crossword

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Across
  1. 2. Any factor that can be controlled,changed,or measured in an experiment.
  2. 3. decay An unstable atomic nucleus loses energy by radiation.
  3. 5. The values chosen for a controlled variable.
  4. 6. The external from or appearance characteristic of someone or something.
  5. 8. A small portion of matter.
  6. 10. useable power such as heat or electricity.
  7. 11. A decay product of Uranium.
  8. 13. A thick rope of wire or nonmetallic fiber.
  9. 14. How far something is.
  10. 16. The measurement or extent of something from end to end.
  11. 19. The production and discharge of something ,especially gas or radiation.
  12. 20. compound is resisting itself to alter itself to other form.
  13. 22. A spot on the sun which appears darker because it is not as hot as other areas.
  14. 24. The distance between two identical adjacent point in a wave.
Down
  1. 1. number The number protons plus neutrons in an atom.
  2. 2. Mass of a unit volume of a material substance.
  3. 4. wind The continuous flow of charged particles from the sun.
  4. 7. relating to or consisting of molecules.
  5. 9. It is the emission of energy or particles.
  6. 12. An explosive warhead carried by a missile.
  7. 15. The greatest or highest amount possible or attained.
  8. 16. when two nuclei are joined in that can be to a larger nucleus.
  9. 17. a nucleus splits into smaller nucley.
  10. 18. The speed of something in a given direction .
  11. 21. The rate at which someone or something is able to move or operate.
  12. 23. A basic unit of a chemical element .