| A | B |
| Arithmetic Density | How many people per square mile that live in a place (shows how tightly packed people are) |
| Agricultural Density | How many farmers there are per square mile (how many farmers it takes to grow the food) |
| Physiological Density | How many people per square mile of ARABLE Land (land that can be farmed) |
| Population Distribution | How the people are spread out in an area |
| Carrying Capacity | How many people the land is capable of supporting |
| Population Pyramid | Shows the COHORTS (groups of people by age) that are in a society |
| Sex Ratio | How many males vs. females in a society |
| Total Fertility Rate | How many babies a woman COULD have in her lifetime |
| Crude Birth Rate (CBR) | The number of babies born in a year |
| Crude Death Rate (CDR) | The number of deaths in a year |
| Natural Increase Rate | How much your population grows per year (CBR - CDR); cannot count immigrants |
| Mortality Rate | How many people die (from all causes) |
| Morbidity Rate | How often people get sick |
| Ecumene | The LAND that can support human life (what you can actually live on) |
| Doubling Time | How long it takes a population to double in size |
| Demographic Transition Model (DTM) | Shows the stages of a population's development over time |
| Migration | People/Animals moving across the surface of the Earth |
| Epidemiological Transition | The relationship between disease and population development |
| Malthusian Theory | As population grows, it will grow faster than food (resources) can keep up |
| Pronatalist Policy | Pro-Baby; encourage babies to be born (not enough kids) |
| Antinatalist Policy | Anti-Baby; encourage people to STOP having kids (too many people) |
| Ravenstein's Laws of Migration | The predictions of who will move, where, and why |
| Pull Factors | Things that get a LURE a person to move (opportunities) |
| Push Factors | Things that people move to get AWAY from |
| Dependency Ratio | How many people DON'T work compared to how many DO work |
| Immigrant | A person who moves to another country |
| Intervening Opportunity | When you wanted to move somewhere, but found a better opportunity (ex. Job) location somewhere else |
| Intervening Obstacle | When you wanted to move somewhere, but something got in the way (Mountain Range; war) so you moved somewhere else |
| Refugees | People who are fleeing a disaster, war, etc. and cross an international border |
| Internally Displace Persons | People who move to a new place inside a country to get away from a disaster, or because of one |
| Asylum Seekers | People who are looking for protection from a government in one country...and move to another |
| Transnational Migration (International) | Moving between nations (countries) |
| Transhumance Migration | The seasonal movement of animals (livestock) |
| Internal Migration | Movement within a country, state, county, etc |
| Chain Migration | Someone in a family moves first, then the rest follow |
| Step Migration | Someone has a final destination, but makes stops along the way |
| Guest Worker | Someone who moves just for the work, and will go back |
| Arable Land | Farmable land |