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One planet, taken apart: plates you can run backwards, an atmosphere you can strip of its ozone, an ocean that sinks in only two places, and ice you can read year by year.
Modules authored
Chapters to work through
min
Taught end to endSyllabus routes
Paths differ by how deep they go, not just by year group.
Classes 11–12 Geography students following Fundamentals of Physical Geography
Can answer a Class 12 board Geography physical-section question from mechanism rather than recall, and can say how each claim is known.
Classes 9–10, following NCERT Social Science Geography
Two things, and neither is a missing module. (1) Depth: the route (plate-tectonics, earthquakes, volcanoes, geomorphology, atmosphere-structure, radiation-heat-balance, atmospheric-circulation, atmospheric-water, world-climate, water-cycle, oceanography, indian-physical-geography, natural-hazards) is entirely authored, but atmospheric-circulation, oceanography and indian-physical-geography are authored rigorous, above this track's quantitative depth. They need quantitative variants of their challenge steps, which is the same gap that keeps ES-FOUND-6-8 unregistered. (2) The gate cannot be closed by the authored modules. NCERT-GEO-9 reads 11 of 50, and 14 of the 39 uncovered items are the size-and-location and natural-vegetation chapters, which no module teaches: doc 24 left them out by design, and three of them are declared out of scope. Passing the gate needs new chapters or an owner decision about what it counts.
UPSC Civil Services aspirants working through General Studies I physical geography — adults, self-paced, revising rather than learning for the first time
Can answer Prelims-format physical geography questions at speed, and structure a Mains answer on a physical-geography prompt.
Any learner from Class 9 up, including adults outside formal education
Two things, and neither is a missing module. (1) The gate cannot be evaluated. ES-MISCONCEPTION-CLEAR reads widget hooks, and although the widgets compute those hooks, no binding from a widget hook to the Assessment Engine or the progress store exists for any volume. Doc 03's own rule forbids a gate that nothing can evaluate on an available track. (2) Depth: the route (radiation-heat-balance, atmosphere-structure, climate-change, cryosphere, earth-observation) is entirely authored, but climate-change and earth-observation are authored rigorous, above this track's quantitative depth, and need quantitative variants of their challenge steps.
Every earth science module authored so far, in teaching order.
Nobody has ever been more than twelve kilometres down, and we know what the middle of the planet is made of anyway. How that is possible, and how each layer boundary was found by somebody reading a wiggle on a piece of paper. Complete: all six chapters.
How the Earth's shell is broken into moving pieces, how that was established against forty years of resistance, and what the reconstruction stops being able to tell you. Complete: all seven chapters.
What rock is made of, how the three rock families form, and why the cycle between them is a network with shortcuts rather than a ring every rock goes round in order. Complete: all six chapters.
Why rock melts — which is not because it gets hotter — why one volcano produces a flow you can walk away from while another cools a hemisphere for a year, and what actually kills people. Complete: all six chapters.
Why the ground breaks, how a break is located and measured from thousands of kilometres away, and why the one number about earthquakes that everybody can recite is wrong in three separate ways. Complete: all seven chapters.
How the surface of the Earth is destroyed and rebuilt: uplift raising rock, surface processes taking it away, and the shape of every landscape you have ever seen being a snapshot of the argument between them. Complete: all six chapters.
How old the Earth is, how anyone could possibly know, and how to read a stack of rocks as a sequence of events. The module where Earth Science stops being about the present. Complete: all six chapters.
What fossils are, why the record is as incomplete as it is, and what it nonetheless establishes: that life has been nearly destroyed at least five times, and how the last of those destructions was worked out. Fossils here are evidence and objects; how evolution works is Biology's question. Complete: all five chapters.
What the air is made of, why it is layered the way it is, how pressure falls away with height, how the ozone layer is made and unmade, and why Earth has kept an atmosphere with free oxygen in it when its neighbours have not. Temperature, not density, defines the layers, and every layer is caused by something you can remove. Complete: all five chapters.
Where the energy that runs every process on Earth comes from, what happens to it, and why the planet's temperature is what it is: the factor of four, albedo, the calculation that comes out 33 degrees too cold, the molecules that make up the difference, the whole budget, and what actually causes the seasons. Complete: all six chapters.
How the atmosphere moves the heat the Sun delivers unevenly: from a pressure gradient to the wind, from the wind to three circulation cells, from the cells to the jet streams and the depressions that bring the weather, and why a forecast is good for a week and not for a month. Complete: all seven chapters.
Humidity, clouds and rain: why air at one temperature can carry only so much water, what happens when it cannot carry any more, and why the answer to "why does it rain here and not there" is almost always "because the air went up". Complete: all five chapters.
Why different places have different climates: how long you must average weather before it becomes climate, the six controls that set a place's climate, reading a climograph, the Köppen tree and the vegetation behind its lines, the world map and where it breaks from its latitudes, and ENSO — climate that varies without changing. Complete: all six chapters.
How the carbon cycle works, how we know the climate is changing, how we know why, and what the projections do and do not say: the carbon budget across four timescales, the Keeling curve, eight hundred thousand years of ice, the isotopic fingerprint of fossil carbon, forcings and feedbacks, reading a climate chart honestly, what a model can and cannot do, and scenarios as conditional ranges. Complete: all eight chapters.
Where the Earth's water is, how long it stays in each place, how it moves between them, what it does underground and what a river does in a storm. Why a planet that is mostly ocean still has a water problem, and why cities flood without more rain. Complete: all five chapters.
The ocean as a physical system: the shape of its floor, the salt in it, the layers it settles into, the deep circulation that density drives, the surface circulation that wind drives, the upwelling that feeds its fisheries, and the tides and the chemistry problem. Density drives everything, and density has two controls. Complete: all seven chapters.
The frozen parts of the planet: why ice that floats and ice that rests on rock are different problems, how a glacier balances its budget and flows, why sea-ice numbers come with a method attached, what the orbit does and does not do to make an ice age, and how a core of ice records climates nobody was there to measure. Complete: all six chapters.
Soil is where rock, water, air and life meet in a layer a few tens of centimetres thick. How it forms and how slowly, how to read a profile for the climate and rock that made it, why texture and pH decide what a plant can get, and why nitrogen is scarce in an atmosphere made of it. The module closes on the balance: soil forms in millimetres per century and a ploughed field loses it in centimetres. Complete: all four chapters.
What turns a natural process into a disaster, how risk is calculated, and why the answer to earthquakes killing people is about buildings rather than earthquakes. Risk as hazard times exposure times vulnerability, return periods by simulation, warning time, buildings on shaking ground, floods and the levee effect, and cascades. Every death toll is cited. Complete: all six chapters.
Where the materials and energy a modern society runs on come from, how the Earth concentrated them, and what "sustainable" means when it is given a definition instead of a mood. Ore turns out to be an economic statement about a rock, oil turns out not to be dinosaurs, and no energy source turns out to be free. Complete: all five chapters.
One subcontinent, as the place where the volume's modules turn out to be one story: a plate that crossed an ocean faster than almost any other, a hotspot that flooded half of it in basalt, a collision that raised the Himalaya and is still loading its faults, six physiographic divisions and the rivers that drain them, a monsoon built from five measured parts, and the soils and hazards each of them leaves. Physical geography only: no political boundary is drawn anywhere in it. Complete: all seven chapters.
How the measurements in every other module were made, and how to read a satellite image without being fooled by it: why sensors use the bands they use, how one real scene becomes many true images, what a spectral index can and cannot say, why no sensor wins at everything, and how to interrogate a dataset — its metadata, its processing level and its uncertainty. Complete: all five chapters.
How much of the examined syllabus this platform currently teaches — not how far you have got through it. Finishing everything here would still leave the topics below uncovered.
Not taught here at all
137 line items are not taught here yet. A line item counts as covered only when a chapter teaches the whole of it, and coverage says nothing about depth — so this is a floor on readiness, not a measure of it.
