BGCSE Geography (Botswana Senior Secondary Education BSSE) study guide
BGCSE Geography · Work through your exam, one topic at a time.
The BGCSE Geography is a school-leaving qualification in the Bahamas General Certificate of Secondary Education suite, taken mainly by senior secondary students in The Bahamas and used by employers, sixth-form institutions and further-education providers as evidence of geographic competence at that level. It suits candidates who can read a landscape, a map and a set of statistics and explain the processes and human decisions behind them. The BGCSE Geography study guide has 9 sections and about 4,058 words.
01Earth Structure
The Earth is layered by density and composition. The crust is thin (about 5–70 km), solid and rocky; the mantle beneath it is largely solid silicate rock but slowly deforms and flows, carrying heat by convection; the outer core is liquid iron-nickel; the inner core is solid iron-nickel under immense pressure.
359 words, about 2 min02Plate Tectonics and Landforms
Candidates must understand continental drift and its modern form, plate tectonics : the lithosphere is divided into plates moved by mantle convection, ridge push and slab pull. Key evidence includes matching coastlines and fossils across the Atlantic, palaeomagnetic stripes on the ocean floor, sea-floor spreading at mid-ocean ridges, and the distribution of earthquakes and volcanoes along plate margins.
291 words, about 1 min03Weather, Climate and Atmosphere
Distinguish weather (short-term atmospheric conditions) from climate (long-term averages and patterns). Know the atmosphere's layers - troposphere (weather), stratosphere (ozone), mesosphere, thermosphere - and the gases: nitrogen and oxygen dominate, with carbon dioxide, water vapour and ozone in small but vital amounts.
294 words, about 1 min04The Water Cycle
The hydrological cycle is a closed global system linking stores and flows. Stores include oceans (about 97% of water), ice caps and glaciers, groundwater, lakes, rivers, soil moisture, the atmosphere and living things.
289 words, about 1 min05Rivers
Candidates should understand river processes, landforms and management . Learn the three processes of erosion - hydraulic action, abrasion, attrition and solution (often listed as four) - plus transportation (traction, saltation, suspension, solution) and deposition.
281 words, about 1 min06Coasts and Oceans
Understand coastal processes, landforms and management . Waves are formed by wind over the sea; learn swash and backwash , constructive versus destructive waves (long, low, frequent waves build beaches; short, steep, powerful waves erode), and longshore drift .
274 words, about 1 min07Ecosystems
An ecosystem is a community of living organisms interacting with their non-living environment. Learn the components: biotic (producers, consumers, decomposers) and abiotic (climate, soil, water, light, temperature).
250 words, about 1 min08Soils and Vegetation
Learn how soil forms from parent rock through weathering, influenced by climate, organisms, relief and time. Understand soil profile horizons: O (organic litter), A (topsoil, humus-rich), B (subsoil, minerals leached down), C (weathered parent material) and R (bedrock).
247 words, about 1 min09Population and Settlement
Understand population distribution and density , and how they are measured. Learn birth rate, death rate, natural increase, migration (push and pull factors), net migration and population structure .
1,773 words, about 9 min