Why do geysers erupt in bursts instead of flowing continuously?
Quick Answer
Geysers erupt in bursts because underground water is trapped, heated above boiling, and then suddenly released as pressure drops. The rapid expansion of steam forces water up through the vent.
The Full Story
A geyser needs a heat source, groundwater, and a plumbing system that can hold pressure. Water deep underground can be heated above 100°C without boiling because the pressure is high. When boiling finally starts, steam bubbles expand dramatically and push water upward in a powerful jet. Yellowstone’s Old Faithful is the famous example, but only a small number of places on Earth have the combination of heat, water, and rock structure needed for geysers.
Key Facts
YouTube Angle
Suggested video title for this topic:
"A geyser is basically a pressure cooker hidden underground."
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