Science Review

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Across
  1. 3. the electrons specifically on the outer most orbit
  2. 7. the first step of the scientific method
  3. 9. neutrally charged particles in the nucleus of an atom
  4. 12. the fourth step of the scientific method
  5. 13. the variable we look for/measure in an experiment
  6. 14. when an atom gains an electron
  7. 15. positively charged particles in the nucleus of an atom
  8. 16. the number on the periodic that represents how many protons an elements has
Down
  1. 1. when an atom loses an electron
  2. 2. the second step of the scientific method
  3. 4. the fifth step of the scientific method
  4. 5. negatively charged particles orbiting the nucleus of an atom
  5. 6. the variable we change/manipulate in an experiement
  6. 8. the weight of the nucleus; made up of protons and neutrons
  7. 10. the sixth step of the scientific method
  8. 11. the third step of the scientific method