Solar energy

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Across
  1. 2. produced by the sun and also called thermal energy
  2. 4. particles of light that make up solar radiation
  3. 7. energy sources that do not replenish faster than they are used, such as coal.
  4. 9. produced by the sun in rays and photons
  5. 11. energy sources that replenish faster than they are used, such as solar.
  6. 13. this takes place in the sun's core
  7. 14. converting sunlight into electricity using semiconductors
  8. 15. methods of energy collection
  9. 17. this substance protects people from dangerous UV light emitted by the sun
Down
  1. 1. layer in which ozone is contained
  2. 3. utilizing mirrors or lenses to focus sunlight for power generation
  3. 5. the lightest element, fused into helium in the sun's core
  4. 6. heaviest element that is formed by fusion in the sun's core, is only formed near the end of a star's life
  5. 8. energy produced using the sun
  6. 10. element formed by fusion of hydrogen in the sun's core
  7. 12. this is what is obtained by solar panels and is necessary for life to function
  8. 16. large celestial body that releases photons, the earth revolves around this.