science revision

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Across
  1. 3. First person to invent a lightbulb
  2. 6. first person to invent a battery
  3. 7. The current that flows one direction
Down
  1. 1. used voltas discovery to make a current
  2. 2. The current that can change direction
  3. 4. made a filament for eddison
  4. 5. First to discover static electricity