lava

     

Lava is molten rock expelle by a volcano during an eruption. When first expelled from a volcanic vent, it is a liquid at temperatures from 700 °C to 1,200 °C (1,300 °F to 2,200 °F). Although lava is quite viscous, with about 100,000 times the viscosity of water, it can flow great distances before cooling and solidifying, because of its thixotropic and shear thinning properties , .

Trivia about lava

  • Magma that reaches the earth's surface is called this
  • Before a volcano belches it forth, it's called magma
  • Once this substance has hardened into rock, the Hawaiians call it “aa”
  • Rocks on 4 continents were formed by the flow of this from an eruption that tore apart Pangaea
  • A lake of this, not water, sometimes fills Kilauea
  • Scoria, a dark, glassy rock created from this, is heavier than pumice & has bigger holes
  • When this cools quickly after an eruption, it can form a type of glass called obsidian
  • This molten volcanic rock was given its name by those who lived around Mount Vesuvius
  • It's the term for molten rock flowing from a volcano or other fissure in the Earth's surface
  • According to the label, this heavy-duty hand cleaner is "pumice-powered"
  • Molten rock
  • The basin called Jornada del Muerto is often compared to a moonscape due to its barren flows of this
  • Until it's cooled, the object seen here was this substance
  • Ow ow ow ow...! Formerly magma, when it gets to the surface, it can be 10 times hotter than boiling water!
  • Originally, this bar's pumice was imported from the Italian island of Lipari
  • Flows of this created the scenic landscape in Idaho's Craters Of The Moon National Monument
  • The name of this soap was inspired by one of its key ingredients -- pumice

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