title: The acquisition of conservation of weight by visually impaired children.
mesh_terms: D000293:Adolescent; D001766:Blindness; D002648:Child; D002657:Child Development; D002674:Child, Institutionalized; D003071:Cognition; D004519:Education, Special; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D011582:Psychological Theory; D012737:Sex Factors; D014110:Touch; D014892:Weight Perception