The Human Life Cycle (Life Science)
Key Vocabulary infant An infant is a bady. An infant cannot walk or talk. newborn. toddler A toddler is a very young child. A toddler learns to walk and talk. 1-3 years old. child A child is a very young person who is no longer a baby but not yet a teen. A child goes to school. kid. 4-12 years old. teen A teen is a person between the ages of 13 and 19. Teens are young adults. teenagers. ...