Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. But they also create new landforms. volcano meaning: 1. a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases…. This material may flow slowly out of a fissure, or crack, in the ground, or it may explode suddenly into the air. Volcano definition, a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. Put simply, a volcano is an opening in the Earth’s surface. Define what a volcano is. Yet, while eruptions are spectacular to watch, they can cause disastrous loss of life and property, especially in densely populated regions of the world. Definition of volcano in the Definitions.net dictionary. Of the three types of volcano, the shield is the largest in terms of area. A volcano is an opening in Earth ’s crust. What is a Volcano? 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 … Provide them with a simple definition and show images of volcanoes, either through a PowerPoint presentation or from a textbook. A volcano is a landform (usually a mountain) where molten rock erupts through the surface of the planet. Usually found in a mountain, the opening allows gas, hot magma and ash to escape from beneath the Earth’s crust.. 2. volcano definition: 1. a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases…. Information and translations of volcano in the most comprehensive dictionary definitions resource on the web. Learn more. Provide a vocabulary list of important terms. 1. When a volcano erupts, hot gases and melted rock from deep within Earth find their way up to the surface. 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. See more. Eruptions can come from side branches or from the top of the volcano. Volcanic eruptions may be very destructive. Active volcano definition: A volcano is a mountain from which hot melted rock, gas, steam , and ash from inside the... | Meaning, pronunciation, translations and examples 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. Cinder cone volcanoes are impressive for their explosive eruptions and classic looks. Key words that kids should know to understand volcanic eruptions are: magma, lava, crust, mantle, core and plates. Learn more. The word “volcano” comes from the Roman name “Vulcan”. 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