Clip opens with boys little league baseball game. Shot of pitcher throwing ball and boy hitting ball and running to first base. Audience clapping. Shot of three boys and three girls approx 12-13 years old walking down the street drinking. Narrator discusses the changes of puberty. Shot of four children of different ages running on a field in slow motion. Narrator discusses the building blocks of physical development. Shot of baby crawling outside on a sidewalk and narrator discussing how a child develops locomotion skills. Shot of three babies in high chairs eating. Narrator discusses the development of fine motor skills. Shot of toddlers playing with plastic blocks and one child placing the blocks next to each other. Shots of an 8 year old girl, 5 year old boy, and 5 year old girl doing a straight jump and narrator discussing the placement of each child's arms based on development. Clip ends with 3 year old girl trying to jump and landing on her stomach because she can't take off yet.