science

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Across
  1. 1. a chain, belt, or rope wrappped around a wheel
  2. 3. negatively charged partcle in an atom
  3. 5. subtance made of two or more elements
  4. 6. center region of an atom(contains neutrons and protons)
  5. 9. interactions between electricity and magnetism
  6. 12. any material that attracts iron or materials contanig iron
  7. 13. has no charge in an atom
  8. 14. complete path through which elctric charges flow
  9. 15. device that has a magnetized needle that can spin freely
  10. 16. push or pull of an object
  11. 17. inclined plane wrapped around a cylinder to form a spiral
Down
  1. 1. positively chaged particle in an atom
  2. 2. speed in a given direction
  3. 4. charges are not able to move freely (glass and plastic)
  4. 7. symbol one or two letters representing a chemical or element
  5. 8. the attraction of a magnet for another object
  6. 9. current electric charge flow through a material
  7. 10. electric current moves freeely through materials(iron and silver)
  8. 11. how much matter