The document provides information on physical development during an infant's first year. It discusses how infants develop motor skills from head to toe and near to far over the year. Key milestones include lifting the head, sitting, crawling, standing, and beginning to walk. It also covers growth in weight, height, vision, hearing, voice, teething and nutrition including introducing solids and self-feeding. The document provides tips for bathing, dressing, diapering and establishing sleep routines for infants.