Map Skills and Cartography
Develop essential geographical skills with this map skills and cartography flashcard deck. Being able to read, interpret, and analyse maps is a core geographical skill required in every geography exam — from GCSE and A-Level to AP Human Geography and university fieldwork. This deck covers 4-figure and 6-figure grid references, contour lines and relief maps, scale and distance calculations, latitude and longitude, the major lines of latitude, map projections and their limitations, ordnance survey map symbols, and an introduction to GIS (Geographic Information Systems). Based on Ordnance Survey, National Geographic, and standard GCSE Geography curricula.
All Cards in This Deck
Question
What is latitude?
Answer
Horizontal lines (parallels) measuring distance north or south of the Equator in degrees (0°–90°). The Equator is 0°. The North Pole is 90°N and South Pole is 90°S.
Question
What is longitude?
Answer
Vertical lines (meridians) measuring distance east or west of the Prime Meridian in degrees (0°–180°). The Prime Meridian (0°) runs through Greenwich, London.
Question
What is the Prime Meridian?
Answer
The 0° line of longitude running through the Royal Observatory, Greenwich, London. Divides Earth into Eastern and Western hemispheres. Used as the reference point for all longitude measurements and time zones.
Question
What is the International Date Line?
Answer
The 180° meridian — on the opposite side of Earth from the Prime Meridian. Crossing it eastward subtracts one day; westward adds one day. It zigzags to avoid splitting countries.
Question
What are the major lines of latitude?
Answer
Equator: 0°. Tropic of Cancer: 23.5°N (Sun overhead at June solstice). Tropic of Capricorn: 23.5°S (Sun overhead at December solstice). Arctic Circle: 66.5°N. Antarctic Circle: 66.5°S.
Question
What is a 4-figure grid reference?
Answer
Used to identify a 1 km² grid square on an OS map. Read eastings first (along the corridor/bottom), then northings (up the stairs/side). Example: grid ref 3452 = easting 34, northing 52.
Question
What is a 6-figure grid reference?
Answer
Used to identify a 100 m × 100 m point within a grid square. Divide the square into 10 equal parts mentally. Add a third digit to easting and northing. Example: 342521 = easting 34.2, northing 52.1.
Question
What are contour lines on a map?
Answer
Lines on a map connecting points of equal elevation above sea level. Close together = steep slope. Far apart = gentle slope. Circular/concentric = hill or valley. V-shapes pointing uphill = valley. V-shapes pointing downhill = ridge/spur.
Question
What is map scale?
Answer
The ratio between a distance on the map and the corresponding distance in reality. 1:25,000 means 1 cm on map = 25,000 cm (250 m) on the ground. 1:50,000 means 1 cm = 500 m. Larger scale = more detail.
Question
How do you calculate real distance from a map?
Answer
Measure distance on map (cm) × scale denominator = real distance (cm). Convert to km by dividing by 100,000. Example: 3 cm on a 1:50,000 map = 3 × 50,000 = 150,000 cm = 1.5 km.
Question
What is the Mercator projection and its limitations?
Answer
A cylindrical map projection that preserves shape and direction — useful for navigation. Limitation: Distorts size at high latitudes. Greenland appears similar in size to Africa, but Africa is ~14× larger.
Question
What is the Peters (Gall-Peters) projection?
Answer
An equal-area projection that shows countries in correct proportion by area. Limitation: Distorts shape — countries appear stretched or compressed. Challenged the Eurocentric bias of the Mercator.
Question
What is GIS (Geographic Information System)?
Answer
A computer system for capturing, storing, analyzing, and displaying spatially referenced data. Layers different data types (roads, population, elevation) on a map. Used in urban planning, disaster response, and environmental monitoring.
Question
What is the difference between relief and topography?
Answer
Relief: The difference in elevation between high and low points in an area (the degree of "roughness"). Topography: The overall shape and physical features of the land, including hills, valleys, rivers, and plains.
Question
What is the bearing of a direction?
Answer
A compass direction expressed as a three-digit number clockwise from north. North = 000°. East = 090°. South = 180°. West = 270°. Example: "Travel on a bearing of 045°" means northeast.
Question
What is remote sensing in geography?
Answer
Collecting information about Earth's surface from a distance — typically using satellites or aircraft. Used to monitor deforestation, sea ice, flooding, urban growth, and weather. Examples: Landsat, Google Earth.
Question
What is the difference between GPS and GIS?
Answer
GPS (Global Positioning System): A satellite navigation system that determines your exact location (latitude, longitude, elevation) using signals from satellites. GIS: A software system for analyzing and visualizing spatial/geographic data. GPS provides data; GIS processes it.
Question
What are OS map symbols for key features?
Answer
Blue: Water (rivers, lakes). Green: Woodland/forests. Black: Roads, railways, buildings. Brown: Contour lines. Red: Major roads. Church with tower: ⊤. Campsite: △. Youth hostel: △.
Question
What is a choropleth map?
Answer
A thematic map using shading, colors, or patterns to show how a variable (e.g., population density, GDP per capita) varies across geographic areas. Darker shading usually = higher values.
Question
What is the difference between map and atlas?
Answer
Map: A diagrammatic representation of an area showing features, boundaries, and spatial relationships. Atlas: A collection of maps, often with thematic, political, and physical maps of the world or regions, with additional statistics.