NCEA Level 3 Geography key terms

A physical mechanism such as tectonic movement, erosion, deposition, or climate action that changes the surface of the earth without direct human control, operating over timescales from seconds to millions of years.

Movement and interaction of the earth's crustal plates, producing uplift, faulting, volcanism, and earthquakes that build or reshape landforms such as mountain ranges and rift valleys.

The zone where two tectonic plates meet. Convergent boundaries produce subduction and mountain building, divergent boundaries create rifting and new crust, and transform boundaries generate lateral faulting.

The process where a denser oceanic plate sinks beneath a lighter plate at a convergent boundary, generating deep trenches, volcanic arcs, and frequent earthquakes.

A fracture in the earth's crust where rock masses have moved relative to each other. Movement along faults releases energy as earthquakes and can offset land surfaces over time.

The eruption of molten rock, ash, and gases onto the surface or into the atmosphere. It builds cones and plateaus, enriches soils, and can destroy or create landforms rapidly.

The wearing away and removal of rock or soil by agents such as water, wind, ice, and gravity. Eroded material is transported and later deposited elsewhere in the landscape.

The breakdown of rock in place by physical, chemical, or biological means, without movement of the material. It produces regolith and soil that erosion can then remove.

The laying down of eroded material such as sediment, sand, or gravel when the transporting agent loses energy, building features like beaches, deltas, spits, and floodplains.

Work done by flowing water, including erosion of channels, transport of sediment, and deposition on floodplains or at river mouths, shaping valleys and plains over time.

Loose particles of rock, sand, silt, or clay that have been weathered and transported. Sediment is deposited by water, wind, or ice and may later become sedimentary rock.

The layer of loose, broken rock and soil material covering solid bedrock. It results from weathering and is the source material for many erosion and deposition processes.

The combined action of waves, tides, currents, and sediment movement that erodes headlands, builds beaches, and shapes shoreline features such as cliffs, spits, and dunes.

The movement of sediment along a coastline by waves approaching at an angle, carrying sand and shingle in a zigzag pattern and building features such as spits and bars.

The area of land drained by a river and its tributaries. Its shape, geology, vegetation, and land use influence how much water and sediment reach the main channel.

A human-driven activity or pattern, such as migration, urbanisation, tourism, or settlement, that changes the character, distribution, and use of places over time.

The movement of people from one place to another, either within a country or between countries, driven by push factors such as unemployment and pull factors such as opportunity.

The increasing proportion of a population living in towns and cities, accompanied by the growth of built-up areas and changes in land use, transport, and services.

Conditions that drive people away from a place, such as poverty or conflict, and conditions that attract them to another, such as jobs or safety. Together they explain migration flows.

Money sent by migrants back to family in their place of origin. Remittances can support households and local economies but may create dependence on overseas earnings.

The temporary movement of people to places away from home for leisure or business, generating employment and income while also placing pressure on environments and infrastructure.

The maximum number of people or visitors an environment or facility can support without unacceptable damage to its resources, amenity, or infrastructure.

The outward expansion of low-density urban development into surrounding rural land, increasing car dependence, infrastructure costs, and pressure on productive soils.

The conversion of land from one purpose to another, for example from farmland to housing or forest to pasture, altering runoff, biodiversity, and the local economy.

A recent happening, such as a disaster, policy change, or protest, analysed geographically for its causes, its spatial effects, and the perspectives of different groups involved.

The viewpoints held by different groups about an event or issue, shaped by their values, interests, and location. Geographic analysis compares these viewpoints rather than assuming one is correct.

A person or group with an interest in a decision or event, such as residents, councils, businesses, or iwi. Identifying stakeholders helps explain conflict and cooperation.

The effect of an event or change on people's wellbeing, safety, health, community cohesion, or access to services, often unevenly distributed across places and groups.

The effect of an event or change on income, employment, business activity, property values, or public costs, which may be short-term or persist for years.

The effect of an event or activity on natural systems, including water and air quality, habitats, erosion rates, and biodiversity, which may be temporary or long-lasting.

A big idea used to interpret places and patterns, such as location, distance, change, interaction, perception, or sustainability. Concepts provide the language for explaining what is observed.

The arrangement of features or phenomena across space, described by distribution, density, clustering, dispersion, or gradient, and often shown on maps or graphs.

The way places and processes affect each other through flows of people, goods, energy, or information, and through links between natural and cultural systems.

Meeting present needs without compromising the ability of future generations to meet theirs, balancing environmental, social, and economic considerations in resource use and development.

A map that shades whole regions according to the value of a variable, such as population density, making broad spatial patterns easy to compare at a glance.

A map joining points of equal value with lines, such as contours for height or isobars for pressure, used to show gradients and continuous surfaces.

A structured inquiry that states an aim, collects and presents field or secondary data, analyses patterns, and draws conclusions evaluated against the original aim.

Data collection carried out in the actual environment being studied, using techniques such as transects, quadrats, surveys, or measurements, planned to answer a specific research aim.

Selecting a representative subset of sites or people to study, using random, systematic, or stratified methods, so that findings can be generalised with reasonable confidence.

Information collected first-hand by the researcher for the specific inquiry, such as measurements, photographs, or survey responses gathered in the field.

Information gathered by someone else and reused, such as census statistics, maps, or council reports, useful for context and comparison but not collected for your aim.

The extent to which data and methods actually measure what they claim to measure, so that conclusions genuinely answer the research aim rather than an unrelated question.

The consistency of data and methods, meaning repeated measurements or trials would produce similar results. It is improved by standardised procedures and sufficient sample size.

Processing collected information into tables, graphs, and maps, then describing patterns and explaining what they mean in relation to the research aim and geographic concepts.

Seeking and responding to the views of affected people, such as landowners, iwi, or the community, before and during research or decision-making, recorded as part of the process.

A current problem or controversy with a spatial dimension, involving competing interests and a decision to be made, such as housing pressure, water allocation, or coastal development.

The process of choosing between options for an issue, weighing evidence, stakeholder views, values, and possible consequences, and justifying a recommended course of action.

The beliefs and priorities that guide what people consider important or acceptable, shaping how stakeholders respond to an issue and what outcomes they support.

A level of analysis covering the whole world or large international regions, used to identify worldwide patterns and connections such as trade flows or climate trends.

The growing interconnection of economies, cultures, and societies through trade, investment, migration, and communication, producing uneven benefits and pressures across places.

Examining the location, distribution, and relationships of features using maps, GIS, and measurement to explain why phenomena occur where they do and to support problem solving.

Geographic information systems: software that stores, combines, and displays layers of spatial data so patterns and relationships can be mapped, queried, and tested.

A practical spatial challenge needing a solution, such as locating a facility or planning a route, addressed by defining criteria, analysing options, and justifying a recommendation.