Volcano

(noun)

A rupture on the crust of a planetary mass object, such as the Earth, which allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

Related Terms

Examples of Volcano in the following topics:

  • Volcanoes

    • Volcanoes form at locations on the Earth's surface where tectonic plates converge or diverge.
    • There are approximately 1,900 active volcanoes on the Earth's surface.
    • Volcanoes are considered active if they have had an explosion in the last 10,000 years.
    • Often, eruptions are preceded by an earthquake or the release of new gases from the volcano.
    • Volcanoes can also have beneficial effects on the surrounding environment.

  • Writing Chemical Equations

    • When a baking soda volcano is made by mixing vinegar (dilute aqueous acetic acid) and baking soda (sodium bicarbonate), the resulting evolution of gas occurs via the following reaction: