Volcano interior name typing — Basic 12

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Basic 12 name list

1. Magma reservoir
2. Main conduit
3. Lateral conduit
4. Central vent
5. Crater
6. Dike
7. Sill
8. Laccolith
9. Volcanic plug
10. Lava layer
11. Tephra layer
12. Country rock

Copy 12 representative names in order from Magma reservoir to Country rock, comparing the spelling and selected range of terms such as Main conduit. These educational models are neither subsurface survey images nor eruption forecasts. The neck represents solidification and erosion; lava and pyroclastic layers show accumulation, while intrusions use simplified bedding comparisons. Colors express selection rather than temperature or natural rock color, and scales vary. A simple reservoir outline does not establish an actual underground boundary; specialist geological review remains pending. The first nonempty input for Magma reservoir starts the timer. When Main conduit or another new label appears, read its picture and complete name before continuing. A matching answer advances without Enter, and unfinished text can be edited in place. Enter on an incorrect nonempty answer adds one error and clears that attempt. After Country rock, review time, keystrokes per minute and errors; the best time stays in this browser by topic, set and language.