phy crosword

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Across
  1. 4. Constancies fimilar size shape color
  2. 8. central nervous system made up of the brain and spinal cord
  3. 9. a thin layer of tissue that lines the back of the eye on the inside
  4. 10. & spinal cord controls how we think
  5. 11. a muscular disk that surrounds the pupil
  6. 12. muscles one of the three significant muscle tissues in the human body
Down
  1. 1. feeling, showing, or expressing sympathy.
  2. 2. Illusions things that dont appear to what they be
  3. 3. Principles similarity,continuation,closure, proximity
  4. 5. a set of beliefs used to analyze the mental state of a person
  5. 6. a small depression in the retina of the eye
  6. 7. Perception is the ability to see things in three dimensions