Question: what are the different stages of physical development?
Answer: 2 Months. Holds head up with support. ...  4 Months. Holds head steady without support. ...  6 Months. Rolls over both from stomach to back and from back to stomach. ...  9 Months. Crawls. ...  1 Year. Moves into sitting position without support. ...  18 Months. Walks alone. ...  2 Years.