Geography uses everyday words in exact ways. A term such as “scale” or “average” has a precise meaning, and a neighbouring term can look right while changing the answer.
Each entry below gives a plain meaning, a short example, the term it is most often confused with, and the lesson to read next. The English, Malay and Chinese concept bridge pairs terms across the three languages, but answers are written in English.
Skills and data
Scale. The ratio between a length on the map and the same length on the ground. At 1:50 000, 1 cm represents 50 000 cm, which is 0.5 km. Confused with: the area scale, which is squared. See scale, distance and relief.
Gradient. How steep a slope is: vertical rise divided by horizontal distance, in the same units. A rise of 50 m over 500 m is 1 in 10. Confused with: relief, the overall height difference in an area. See scale, distance and relief.
Contour interval. The height difference between neighbouring contour lines. If lines are 10 m apart, going up three lines is a 30 m rise. Confused with: the spacing of contours on paper, which shows steepness.
Grid reference and bearing. A grid reference names a square or point on a map, and a bearing gives a direction in degrees from north. Confused with: each other. See map reference and direction.
Mean and median. The mean adds values and divides by the count. The median is the middle value when ordered. Confused with: each other when one extreme value is present. See graphs, photographs and spatial data.
Outlier. A value far from the rest, such as 40 among 12, 13, 14 and 15. Confused with: an error, because an outlier may be genuine.
Primary and secondary data. Primary data you collect yourself. Secondary data comes from someone else, such as a published census. Confused with: quantitative and qualitative, which describe the type of data, not its source. See fieldwork design and sampling.
Sampling (random, systematic, stratified). Random picks by chance, systematic picks at regular intervals, stratified picks in proportion to groups. Confused with: choosing convenient locations, which is bias. See fieldwork design and sampling.
Physical geography
Weather and climate. Weather is the state of the atmosphere at a time and place. Climate is the pattern over a long period. Confused with: each other. See weather and climate.
Weathering and erosion. Weathering breaks rock down in place. Erosion wears rock away and carries it off by moving water, ice, wind or waves. Confused with: each other, and with transport. See rivers and drainage.
Hazard and disaster. A hazard is a potential threat from a natural event. A disaster is when that event causes serious harm to people. Confused with: each other. See tectonic processes and hazards.
Mitigation and adaptation. In climate change, mitigation reduces the causes, such as emissions. Adaptation adjusts to effects that are already happening or expected. Confused with: each other. See climate change evidence and responses.
Human geography
Migration factors (push and pull). Push factors make people leave a place, and pull factors attract them to another. Confused with: stereotypes about groups of people, which do not explain anything. See population and settlement evidence.
Development indicator. A measured value used to compare levels of development, such as income or life expectancy. One indicator never describes a country alone. Confused with: development itself. See development and inequality.
Worked context: one sentence, two terms
This is an invented sentence for teaching. A student writes: “The 2019 flood was a natural disaster caused by heavy rain, and the council used mitigation by moving families to a new estate.”
The first term, “disaster”, is right only if the flood caused serious harm to people, so the answer should say so.
The second term needs care. Moving families is an adaptation to flood risk.
Mitigation would address causes, which a local council cannot do for rainfall. Naming the right term shows the student separates cause from response.
Where to go next
Use the terms in your own explanations, not only in definitions. The original practice hub has questions that test them in use.
To talk through which terms you mix up, read about online one-to-one Geography tuition, or go back to the learning guide.