key words of an erupting volcano 0.0 / 5 ? GeographyNatural hazardsGCSEOCR Created by: Beth999Created on: 31-03-15 16:24 Rock plug Cooled rock at the top of the vent. The next eruption may blow it out. 1 of 6 Viscous If the lava is viscous, it is thick and sticky. 2 of 6 Lahar Mudslide of melted snow and volcanic ash. 3 of 6 Pyroclastic flow Mass of hot ash, lava fragments and gases. Travels at high speeds. 4 of 6 Crater Bowl shaped formation at the top of a volcano 5 of 6 Vent Opening in earths crust where molten, ash and gases are ejected. 6 of 6
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