1. When a volcano erupts, hot gases and melted rock from deep within Earth find their way up to the surface. But they also create new landforms. A volcano is a landform (usually a mountain) where molten rock erupts through the surface of the planet. Put simply, a volcano is an opening in the Earth’s surface. Information and translations of volcano in the most comprehensive dictionary definitions resource on the web. The Earth's crust is broken into 17 major, rigid tectonic plates.These float on a hotter, softer layer in its mantle.Volcanoes are often found where tectonic plates are moving apart or coming together. Volcano definition, a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. The word “volcano” comes from the Roman name “Vulcan”. In simple terms a volcano is a mountain that opens downward to a pool of molten rock (magma) below the surface of the earth.It is a hole in … Usually found in a mountain, the opening allows gas, hot magma and ash to escape from beneath the Earth’s crust.. 2. Definition of Shield Volcano. volcano meaning: 1. a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases…. See more. Cinder cone volcanoes are impressive for their explosive eruptions and classic looks. Of the three types of volcano, the shield is the largest in terms of area. Define what a volcano is. Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases.A volcanic eruption is an awesome display of Earth’s power. Definition of volcano in the Definitions.net dictionary. volcano definition: 1. a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases…. A volcano can also be classified as an extinct volcano, which means that it is a volcano that is not expected to erupt again. Some are quiet outflows of hot lava.Several more complex types of volcanic eruptions have been described by volcanologists.These are often named after famous volcanoes where that type of eruption has been … Provide them with a simple definition and show images of volcanoes, either through a PowerPoint presentation or from a textbook. Eruptions can come from side branches or from the top of the volcano. Learn more. Yet, while eruptions are spectacular to watch, they can cause disastrous loss of life and property, especially in densely populated regions of the world. Volcanoes are formed by the movement of tectonic plates.. Volcanic eruptions may be very destructive. Meaning of volcano. This material may flow slowly out of a fissure, or crack, in the ground, or it may explode suddenly into the air. A volcano is an opening in Earth ’s crust. What is a Volcano? 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