Science behind science

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Across
  1. 2. a small light that is held in the hand and usually gets its power from batteries
  2. 3. the faculty of perceiving sounds.
  3. 6. put your hand or another part of your body lightly onto and off something or someone
  4. 7. the faculty or power of perceiving odors
  5. 8. the faculty or power of seeing.
  6. 11. full of or giving off light.
  7. 12. not transparent or translucent
  8. 14. the sensation of flavor perceived in the mouth and throat on contact with a substance.
  9. 15. throw back (heat, light, or sound) without absorbing it.
Down
  1. 1. make (something) visible or bright by shining light on it
  2. 4. either of the two pieces of skin that can close over each eye
  3. 5. a piece of material suspended at the top to form a covering or screen, typically one of a pair at a window
  4. 7. a dark area or shape produced by a body coming between rays of light and a surface.
  5. 9. allowing light to pass through so that objects behind can be distinctly
  6. 10. form an opinion or conclusion about.
  7. 13. to produce