science project

123456789101112
Across
  1. 2. charge/ is a property that leads to electromagnetic interactions between the particles that makes matter
  2. 3. occurs when two objects are rubbed together
  3. 5. is an example of electrical discharge
  4. 7. are the third type of particle and are found outside the nucleus
  5. 9. insulator/ is a material through which charges cannot move freely
  6. 10. always pulls objects together
  7. 12. has a charge of 1+
Down
  1. 1. are a special class of materials that conduct electric charge better than insolators but not as well as conductors.
  2. 4. all atoms make a dense center
  3. 6. the overall positive or negative of an atom
  4. 8. has no charge
  5. 11. electricity/ is the buildup of electric charge on an object