Unit 1 & 2 crossword puzzle

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Across
  1. 2. Energy stored in chemical bonds of a substance
  2. 3. Value of speed of light
  3. 6. Natural force which holds protons and neutrons
  4. 9. total kinetic energy of atoms of a substance
  5. 10. mass of an atom
  6. 13. Mass is neither created nor destroyed
  7. 14. The energy stored in a system
  8. 16. Measure of the disorder of the system
  9. 17. Measure of kinetic energy of particles in matter
  10. 18. transfer of heat through waves
  11. 19. The capacity to move to work, change matter or produce heat
  12. 20. Same atomic #/ different mass
  13. 22. Atom with electric charge with loss or gain of an electron
  14. 24. Area around nucleus/ holds electrons
Down
  1. 1. Pure substance of one type of atom
  2. 4. electrical current does not flow freely
  3. 5. Transfer of heat through touch
  4. 7. Energy from an object motion
  5. 8. symbiotic particle with positive charge
  6. 11. Cycling of currents- heat rises and cool sinks
  7. 12. Energy transferred as a result from difference in temperature
  8. 15. Symbiotic particle with no charge
  9. 21. Wave like behavior of an electron
  10. 23. basic unit of life
  11. 25. symbiotic particle with negative charge