Intuitive Geology Course
University-level geology, explained intuitively. Every lesson pairs plain-language explanations with precise, code-drawn figures, worked examples, hands-on simulations, and practice you can check yourself — built for undergraduates and for graduates refreshing fast.
Earth as a Planet & Geologic Materials
Earth's layers, minerals, rocks, and how geologists think about our planet as a system.
Plate Tectonics
The unifying theory of geology — drifting continents, spreading seas, and the forces that shape the Earth.
Minerals
The building blocks of rocks — identification, crystal structure, and the silicate family.
Igneous Rocks & Volcanism
From magma to mountain — how molten rock crystallises and erupts.
Sedimentary Rocks & Environments
Reading the story of erosion, deposition, and lithification in layered stone.
Metamorphic Rocks
Heat, pressure, and time transform rocks deep within the crust.
Geologic Time & Stratigraphy
Measuring deep time — relative dating, radiometric ages, and the geologic time scale.
Structural Geology & Earthquakes
Folds, faults, and the seismic waves that reveal Earth's interior.
Surface Processes
Weathering, erosion, rivers, glaciers, coasts, and the sculpting of Earth's surface.
- Mechanical & Chemical Weathering Open →
- Soil Formation & Soil Profiles Open →
- Mass Wasting: Creep, Slumps, Landslides & Flows Open →
- Rivers: Erosion, Transport, Deposition & Floods Open →
- Groundwater, Aquifers & Karst Open →
- Glaciers & Glacial Landforms Open →
- Deserts & Wind: Eolian Processes Open →
- Waves, Tides & Coastal Processes Open →
- Marine Sediments & Ocean Basins Open →
Earth Resources & Environmental Geology
Ore deposits, fossil fuels, hazards, and the geologic carbon cycle.
Studying geology at university? Refresh fast.
These lessons follow the core sequence taught in first-year Earth-science programmes across the US and UK — plate tectonics, minerals, rocks, deep time, structure, surface processes, and resources. If you are revising for exams, returning after a break, or a graduate who wants the fundamentals back at your fingertips, each lesson is a compact, interactive rebuild of one lecture's worth of material: read it, run the simulation, test yourself — in minutes.
Departments and open course materials referenced throughout this course:
External sites are listed for reference only. This course is independent and has no affiliation with, or endorsement from, the institutions named.
Start with Module 1 →New lessons are added continuously. Prefer to test yourself? Try the Science practice tests.