“Old Faithful is a famous volcano.”
Usage Entry 1218 / 1350 60-second read
Volcano vs. Geyser
A mountain that erupts lava and ash versus a hot spring that shoots water.
The comparisoni
“Old Faithful is a famous geyser — it shoots hot water. Volcanoes erupt magma.”
The ruleii
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VOLCANO = lava. GEYSER = water.
A VOLCANO is an opening in the Earth's crust where magma, ash, and gas erupt. A GEYSER is a hot spring that periodically erupts boiling water and steam — driven by geothermal heat, not magma directly. Both are geothermal, but only one involves lava.
Memory aidiii
Remember it like this
Volcano = fire. Geyser = steam.