Light

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Across
  1. 5. object that does not produce its own light is _____(12)
  2. 6. the dark area formed when light is blocked is a___(6)
  3. 8. Thin straight lines of light are called _____(4)
  4. 10. objects made by people not natural example bulbs and touch are___(9)
Down
  1. 1. bulbs tube light are coloured sources of light made by humans (9)
  2. 2. material that allows light to pass through clearly like clear glass is____(11)
  3. 3. narrow stream of light like torch light _______(5)
  4. 4. object that produce its own light is_______(8)
  5. 7. material that does not allow light pass through is_______(6)
  6. 9. Natural ______ of light like the sun (6)