100+ Free Cameroon GCE O-Level Geology Practice Questions
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Key Facts: Cameroon GCE O-Level Geology Exam
Examining Authority
Subject Code & Level
Paper 1 Format & Weight
Paper 2 Structure
Passing Standard
Total Examination Fee
Primary Regional Case Studies
The Cameroon GCE Ordinary Level Geology (0555) is the national secondary examination administered by the CGCEB in Buea, assessing Earth structure, the rock cycle, plate tectonics, structural geology and the economic geology of Cameroon across two written papers: Paper 1 (50 compulsory MCQs, 1 hour 30 minutes) and Paper 2 (theory, structured questions and essays, 2 hours 30 minutes).
Sample Cameroon GCE O-Level Geology Practice Questions
Try these sample questions to test your Cameroon GCE O-Level Geology exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which of the following statements correctly distinguishes the continental crust from the oceanic crust in the Earth's internal structure?
2The Mohorovičić discontinuity (Moho) represents the boundary separating which two concentric layers of the Earth?
3The Gutenberg discontinuity is located at a depth of approximately 2,900 km beneath the Earth's surface. What critical seismic evidence identifies this boundary?
4Why is the Earth's inner core solid despite experiencing temperatures exceeding 5,000 °C, while the outer core is liquid?
5The asthenosphere is a mechanically weak layer located in the upper mantle. What is its primary geological role in global tectonics?
6Which of the following fulfills all scientific criteria to be classified as a true mineral?
7On the Mohs scale of mineral hardness, which standard mineral is assigned a hardness value of 7?
8A student in a geology laboratory tests an unknown mineral specimen. The mineral can scratch a human fingernail (hardness ~2.5) but is scratched by a copper coin (hardness ~3.5). What is the estimated hardness and likely identity of this mineral?
9Which diagnostic physical property of minerals is tested by rubbing a specimen against an unglazed white porcelain plate?
10Hematite often occurs in a steel-grey, metallic crystal form ('specularite') or as dark kidney-shaped masses. What is the characteristic diagnostic streak of hematite?
About the Cameroon GCE O-Level Geology Exam
The Cameroon General Certificate of Education (GCE) Ordinary Level Geology examination (Subject Code 0555) is the standardised national assessment administered by the Cameroon GCE Board in Buea at the conclusion of Form 5 secondary education. The curriculum equips students with a foundational scientific understanding of the Earth's physical structure, internal and surface processes, petrology, structural deformation, palaeontology and the economic geology of Cameroon. Geology is a two-paper subject: Paper 1 evaluates core conceptual knowledge through 50 compulsory multiple-choice questions (1 hour 30 minutes) and Paper 2 assesses in-depth theoretical analysis, structured problem solving and descriptive essays (2 hours 30 minutes). The Cameroon GCE Board states that only Food and Nutrition (0540), Special Bilingual Education French (0546) and Computer Science (0595) have a practical component at Ordinary Level, so 0555 has no practical paper — the 0755 Geology practical that appears in the Board's practical timetable is the Advanced Level paper. Mineral and rock identification and geological map interpretation are therefore examined in writing. A key feature of the CGCEB syllabus is its deep contextual integration of local Cameroonian geology, including the tectonic origin of the Cameroon Volcanic Line (CVL), the eruptive history of Mount Cameroon (Fako), limnic degassing at Lake Nyos and Lake Monoun, and the distribution of mineral deposits such as Minim-Martap bauxite, Mbalam iron ore, Figuil limestone and the Rio del Rey hydrocarbon fields. The Board reported a 64.76% pass rate in Geology in the June 2026 session. Format note: this site's practice bank is 100 four-option multiple-choice questions covering the whole official syllabus. Paper 1 of the real examination is genuinely multiple choice (50 compulsory questions), so the format matches that paper, but the bank is a study aid only — it does not simulate the written theory/essay paper(s) or any practical examination, and its length does not describe the official exam.
Assessment
Official Ordinary Level structure for subject code 0555 (Geology) per the Cameroon GCE Board June 2026 timetable (Form G6): Paper 1: 50 compulsory multiple-choice questions (1 hour 30 minutes); Paper 2: written theory/structured questions (2 hours 30 minutes). Total written time is 4 hours. The Board does not publish per-paper mark weightings for individual subjects.
Time Limit
Paper 1: 1 hour 30 minutes; total written time 4 hours.
Passing Score
Grade C or better (Cameroon GCE Ordinary Level grades A, B and C are passes; D and E are fails and U is ungraded)
Exam Fee
10,000 FCFA (Cameroon GCE Board (CGCEB), Buea)
Cameroon GCE O-Level Geology Exam Content Outline
earth-structure-and-minerals
Concentric internal structure of the Earth (continental and oceanic crust, mantle, asthenosphere, outer core, inner core, Mohorovičić and Gutenberg discontinuities), definition of a mineral, physical identification properties (hardness, Mohs scale, streak, lustre, cleavage, fracture, crystal form, specific gravity, acid reaction), and major rock-forming minerals (quartz, orthoclase, plagioclase, muscovite, biotite, calcite, pyroxene, amphibole, olivine).
rock-types-and-rock-cycle
Origin, classification, and characteristics of igneous rocks (extrusive/volcanic vs. intrusive/plutonic/hypabyssal; textures: phaneritic, aphanitic, porphyritic, vesicular, glassy; granite, basalt, gabbro, pumice, obsidian, dolerite/diabase), sedimentary rocks (weathering, erosion, transport, deposition, diagenesis, lithification; clastic, chemical, and biogenic/organic types; conglomerate, breccia, sandstone, shale, limestone, coal), metamorphic rocks (contact/thermal vs. regional metamorphism; agents: heat, confining pressure, directed stress, fluids; foliation, slate, phyllite, schist, gneiss, marble, quartzite), and interconversions in the dynamic rock cycle.
dynamic-earth-and-plate-tectonics
Wegener's continental drift hypothesis and paleontological/geological evidence, sea-floor spreading, mantle convection currents, plate boundary types (constructive/divergent, destructive/convergent, conservative/transform), earthquakes (focus, epicentre, seismic wave types: P, S, surface waves; seismographs, Richter and Mercalli scales), volcanic processes (magma viscosity, gas content, basaltic vs rhyolitic lavas, stratovolcanoes, shield volcanoes, pyroclastic flows, lahars), the Cameroon Volcanic Line (CVL), Mount Cameroon eruptions, and crater lake limnic degassing (Lake Nyos and Lake Monoun).
structural-geology-and-geological-maps
Geometrical measurement of planar structures (strike, dip angle, dip direction), fold geometries and mechanisms (anticlines, synclines, monoclines, axial plane, hinge line, limbs, symmetrical vs asymmetrical folds), fault geometries and classifications (hanging wall, footwall, normal faults, reverse/thrust faults, strike-slip/tear faults, horsts, grabens, rift valleys), unconformity types (angular unconformity, disconformity, nonconformity), and interpretation of basic geological maps, contour lines, strike lines, outcrop patterns, and vertical cross-sections.
fossils-and-economic-geology
Fossil formation, conditions favoring preservation, modes of fossilization (unaltered remains, permineralization/petrifaction, carbonization, moulds and casts, trace fossils/ichnofossils), index fossils and stratigraphic correlation, law of superposition, relative geological dating, and economic geology of Cameroon: bauxite reserves (Minim-Martap, Ngaoundal, Fongo-Tongo), iron ore deposits (Mbalam, Kribi, Nkout), limestone and cement manufacture (Figuil), petroleum and natural gas (Rio del Rey, Douala/Kribi-Campo basins), building stones/aggregates, and hydrogeology/groundwater aquifers.
How to Pass the Cameroon GCE O-Level Geology Exam
What You Need to Know
- Passing score: Grade C or better (Cameroon GCE Ordinary Level grades A, B and C are passes; D and E are fails and U is ungraded)
- Assessment: Official Ordinary Level structure for subject code 0555 (Geology) per the Cameroon GCE Board June 2026 timetable (Form G6): Paper 1: 50 compulsory multiple-choice questions (1 hour 30 minutes); Paper 2: written theory/structured questions (2 hours 30 minutes). Total written time is 4 hours. The Board does not publish per-paper mark weightings for individual subjects.
- Time limit: Paper 1: 1 hour 30 minutes; total written time 4 hours.
- Exam fee: 10,000 FCFA
Keys to Passing
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
Cameroon GCE O-Level Geology Study Tips from Top Performers
Frequently Asked Questions
What is the structure and duration of the Cameroon GCE Ordinary Level Geology exam?
Geology 0555 is a two-paper subject: Paper 1 is 50 compulsory multiple-choice questions (1 hour 30 minutes) and Paper 2 is a written theory, structured and essay paper (2 hours 30 minutes), per the Cameroon GCE Board June 2026 timetable — 4 hours of written time in total. The Cameroon GCE Board states that only Food and Nutrition, Special Bilingual Education French and Computer Science have a practical at Ordinary Level, so there is no Geology practical paper. The Board does not publish per-paper mark weightings.
What passing grades are awarded by the Cameroon GCE Board?
The CGCEB awards grades on a 6-point letter scale: A (Distinction, 70-100%), B (Credit, 60-69%), C (Pass, 50-59%), D (Subsidiary/Fail, 40-49%), E (Weak/Fail, 30-39%), and U (Ungraded, 0-29%). A grade of C or higher is officially recognized as a subject pass on the GCE Ordinary Level certificate.
What specific regional geology topics from Cameroon are tested?
The CGCEB syllabus extensively assesses Cameroon's unique geology, including the Cameroon Volcanic Line (CVL), Mount Cameroon's historic basaltic eruptions (1982, 1999, 2000), the 1986 Lake Nyos and 1984 Lake Monoun limnic carbon dioxide degassing disasters, and key mineral resources such as Minim-Martap bauxite, Mbalam iron ore, Figuil limestone, and Rio del Rey offshore petroleum.
What mineral, rock and map skills are examined?
Ordinary Level Geology has no practical paper, so these skills are tested in writing across Papers 1 and 2: identifying minerals from described physical properties (Mohs scratch hardness, streak colour, cleavage versus fracture, acid effervescence on calcite), classifying igneous, sedimentary and metamorphic rocks from descriptions, and geological map exercises including calculating dip, reading topographic profiles and interpreting cross-sections.
How are calculations and quantitative problems tested on Paper 1?
Paper 1 includes quantitative questions requiring candidates to calculate true and apparent dip angles, determine real-world distances and elevations from map scales and contour intervals, compute mineral specific gravities from air and water mass measurements, and calculate seismic wave arrival times and epicentral distances.