Grade 9

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Across
  1. 4. a big system of solar panels
  2. 7. a word which means indefinitely reliable
  3. 8. we live on this planet
  4. 11. a container with cells, in which electricity might be stored for using in the future
  5. 12. the blowing air
  6. 13. an electromotive force measured in volts
  7. 14. the biggest star in the Solar system around which all the planets orbits
  8. 15. power that provides light and heat or to run devices.
Down
  1. 1. the strength of an electricity, measured in amperes
  2. 2. liquid that forms rivers, lakes, seas
  3. 3. that kind of energy does not produce emissions while generating electricity
  4. 5. fuel used for engines
  5. 6. something for consuming the sun's rays as a source of energy for generating electricity
  6. 7. dark space between the sun's rays and a surface
  7. 9. the quality of being hot
  8. 10. usually with metal inside, a “guide for electricity”