| biochemistry(noun, nature, study, science) |
| inorganic chemistry(noun, nature, study, science) |
| natural science(noun, nature, study, science) |
| organic chemistry(noun, nature, study, science) |
| biology(noun, nature, study, science) |
| chemistry(noun, nature, study, science) |
| depth(noun, colour, picture, perception) |
| eyesight(noun, ability, vision, perception, sight) |
| intensity(noun, colour, picture, perception) |
| mixture(noun, nature, study, science) |
| optics(noun, ability, vision, perception, sight) |
| perception(noun, ability, vision, sight) |
| sight(noun, ability, vision, perception) |
| synthesis(noun, nature, study, science) |
| vision(noun, ability, perception, sight) |
| visiual impression(noun, ability, vision, perception, sight) |
| visual perception(noun, ability, vision, perception, sight) |