Gil's Science Crossword (use - for spaces)

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Across
  1. 4. a material that allows heat and electricity to pass through it
  2. 7. To pull towards
  3. 8. to send out rays; to beam or shine
  4. 11. (two words) the attraction or repulsion between magnetic poles
  5. 12. To push away
  6. 14. a material or an object that does not easily allow heat, electricity, light, or sound to pass through it
  7. 17. (two words) a state where an object or particle has an excess of electrons compared to protons
  8. 18. (two words) a force that one charge exerts on another – when the charges are the same sign, theyrepel - when the charges are opposite, they attract
  9. 19. (two words) the south-seeking pole of a magnet
  10. 20. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
Down
  1. 1. the force of attraction or repulsion of magnetic materials
  2. 2. (two words) a region around a charged object where the object's electric force is exerted on other charged objects
  3. 3. (two words) a north-seeking pole of a magnet
  4. 5. a measure of the extra positive or negative particles that an object has
  5. 6. (two words) an attractive force that acts between any two objects
  6. 9. a form of energy caused by the movement of electrons
  7. 10. an instrument for detecting and measuring small electric currents
  8. 13. (two words) more protons than electrons
  9. 15. a machine that converts mechanical energy into electrical energy
  10. 16. temporary magnet that loses its magnetism when the electric current is turned off