Science Spelling

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Across
  1. 1. When light is blocked by translucent or opaque objects
  2. 2. Property of light travel
  3. 3. The mechanism by which we can see objects that are not light sources
  4. 5. Light is ________ by opaque object
  5. 6. Degree of transparency affects how much light can ____________ an object
Down
  1. 1. Refers to objects that can give out light
  2. 4. Light is a form of ______.