Planet under pressure
Earth and Geology
If the landscape feels solid and permanent, geology is the reminder that it is still changing underneath us.
Best Starting Point
Start with What causes earthquakes?
If you want one page that gives the cleanest first pass through earth and geology, this is the best place to begin before branching out.
A fault-slip lab that lets you build stress, change friction, and move farther from the rupture to see how shaking changes.
Start Here If You Are Wondering About...
Pick the closest first question in Earth and Geology
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A fault-slip lab that lets you build stress, change friction, and move farther from the rupture to see how shaking changes.
If you want the Eruption lab angle first Why do volcanoes erupt?A volcano lab that lets you change gas content, magma stickiness, and vent blockage to compare lava flows with explosive ash-rich eruptions.
If you want the Crystal lab angle first How do crystals form?A crystal-growth lab that lets you tune concentration, cooling, room to grow, and impurities to see when crystals stay tiny and when they become large and well formed.
If you want the Cave lab angle first How do caves form?A cave lab that lets you change water acidity, cracks, rock softness, and time to compare slow underground etching with large dissolving cave passages.
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Recently updated pages in Earth and Geology
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A fault-slip lab that lets you build stress, change friction, and move farther from the rupture to see how shaking changes.
Updated Apr 11, 2026 Why do volcanoes erupt?A volcano lab that lets you change gas content, magma stickiness, and vent blockage to compare lava flows with explosive ash-rich eruptions.
Updated Apr 11, 2026 How do crystals form?A crystal-growth lab that lets you tune concentration, cooling, room to grow, and impurities to see when crystals stay tiny and when they become large and well formed.
Updated Apr 11, 2026 How do caves form?A cave lab that lets you change water acidity, cracks, rock softness, and time to compare slow underground etching with large dissolving cave passages.
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Use the strongest first page, then branch by sub-question
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Explainers
Pages in Earth and Geology
Rock, pressure, water, and time shaping caves, crystals, earthquakes, and volcanoes.
A fault-slip lab that lets you build stress, change friction, and move farther from the rupture to see how shaking changes.
Earth and Geology Why do volcanoes erupt?A volcano lab that lets you change gas content, magma stickiness, and vent blockage to compare lava flows with explosive ash-rich eruptions.
Earth and Geology How do crystals form?A crystal-growth lab that lets you tune concentration, cooling, room to grow, and impurities to see when crystals stay tiny and when they become large and well formed.
Earth and Geology How do caves form?A cave lab that lets you change water acidity, cracks, rock softness, and time to compare slow underground etching with large dissolving cave passages.
Further Reading
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