ANATOMY

Detailed explanation-1: -Incredibly, it doubles in size in the first year and keeps growing to about 80 percent of adult size by age three and 90 percent-nearly full grown-by age five.

Detailed explanation-2: -While all children may grow at a different rate, the following indicate the average for four to five year old boys and girls: weight: average gain of about 4.4 to 6.5 pounds a year. height: average growth of about 3 inches per year.

Detailed explanation-3: -Kids at this age are still very physical, but they learn in a more focused and less hectic way than when they were younger. These kids typically gain about 4–5 pounds (2 kilograms) and grow about 2–3 inches (5 to 8 centimeters) per year.

Detailed explanation-4: -In general, length in normal-term infants increases about 30% by age 5 months and more than 50% by age 12 months. Infants typically grow about 10 inches (25 centimeters) during the first year, and height at 5 years is about double the birth length. In boys, half the adult height is attained by about age 2.