There are 7 key elements that define a culture: 1) social organization including families and social classes, 2) customs and traditions, 3) language, 4) arts and literature, 5) religion, 6) forms of government, and 7) economic systems. Cultures can change over time due to technology, environmental changes, new ideas, and the diffusion of customs and ideas between cultures. However, it is important to avoid ethnocentrism and racism when analyzing different cultures.