Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

child development refers to biological, psychological and emotional changes that happen in humans between birth and the end of adolescence, at which time the individual goes from dependence to independence.
child development

a bite is a wound received from the teeth of an animal.
bite

in 1920 the name was changed from fv to sv werder bremen.

werder bremen