Science Birthday

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Across
  1. 2. basic unit of life
  2. 4. Hottest planet
  3. 8. Transformers only work with this type of current
  4. 9. Common gas making up about 78% of Earth’s atmosphere
  5. 10. Biggest moon of the solar system
Down
  1. 1. Instrument used to measure earthquakes
  2. 3. Planet with no atmosphere in the solar system
  3. 5. Unit of power named after a Scottish inventor
  4. 6. planet with most number of rings
  5. 7. Faraday’s Cage is used to protect against this sudden discharge