When Does a Geyser Occur?
A geyser occurs when a hot spring erupts, hurling a column of water and steam high into the air. These springs are situated in…
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Magma
What Causes Volcanoes?
What Causes Volcanoes? Volcanoes form when pressures within the earth force melted rock and gases upward through cracks in the surface. The
Where Do Volcanoes Begin?
Where Do Volcanoes Begin? Volcanoes begin deep inside the earth. The earth’s crust is made up of giant pieces of rock called plates. Volcano
How Did Volcanoes Get Their Name?
How Did Volcanoes Get Their Name? Volcanoes were named after Vulcan — the ancient Roman god of fire and metals. According to Roman legend,
How Important Is Igneous Rock?
Scientists classify all the rocks in the world as igneous, sedimentary, or metamorphic. Igneous rocks form when magma cools slowly under the earth’s surface…