In the early 1960s, sociologist Herbert Gans moved into a newly developed suburb in new jersey where he lived for two years, observing and interviewing his neighbors. in research terms, Gans conducted a participant observation study. Participant observation is method used for data collection, in which the <span>the </span>observer is a "player" in the action (he/she <span>participates in ongoing activities and records </span>observations). The technique is used in many studies in Anthropology and Sociology.
Solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.