Electricity

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Across
  1. 2. What has a circle with an X in the middle?
  2. 4. What attract?
  3. 7. What kind of charge does a Proton have?
  4. 8. What is everything on earth made of?
  5. 9. What is the flow of charged electrons
Down
  1. 1. What has a circle with an M in the middle?
  2. 3. What kind of electricity does not flow continuously?
  3. 4. How many cells does a lightbulb have?
  4. 5. This has a negative charge
  5. 6. What kind of charge do Neutrons have?