Science Vocab Crossword:Mary Villamor

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Across
  1. 3. subatomic particle with a positive charge
  2. 8. 2 substances combine to create a new substance
  3. 11. subatomic particle with no charge
  4. 12. Form of matter is altered but not the substance
  5. 13. properties that do not change chemical nature
  6. 15. degree of compactness in a substance
  7. 16. particle smaller than an atom
  8. 19. Same number of protons and element but different neutrons
Down
  1. 1. anything that occupies space and has mass
  2. 2. mass of an atom
  3. 4. Behavior of a substance in a chemical change
  4. 5. positively charged central core of an atom
  5. 6. Number of protons in the nucleus of an atom
  6. 7. degree where a material conducts electricity
  7. 9. cloud Region of electrons surrounding a nucleus
  8. 10. atom/molecule with electrons that are not equal to protons
  9. 14. material stretches into a wire under stress
  10. 17. the basic unit of a chemical element
  11. 18. level Fixed amount of energy that a system can have