volcano -A cone which is formed above and around a vent by accumulations of erupted volcanic materials like pumiceand other volcanic rocks.
vents- The vent is an opening at the Earth's surface through which volcanic materials are released.
erupts - The way liquids, solids and gases are expelled on the Earth's surface by volcanic activity. This can range from explosive outbursts to quiet, noiseless lava-outcome.
dormant - A volcano which is presently inactive but which may erupt again.
active - A volcano which is erupting.
cinder cone/shield/stratovolcano (see Lesson 7 Power point presentation for facts/definitions of these types of volcanoes)
pryoclastic flow - Mixtures of hot gases and volcanic ash travelling very quickly down the slope of a volcano.
cinder - Light fragments of solidified lava, between 64mm and 30cm in size, are very hot, can start fires.
pumice - Cinder so bubbly that it floats in water. (the bubbles are from air caused by water mixed with magma)
vulcanologist - a scientist who studies volcanoes!
viscosity - thickness/stickyness of magma. high viscosity = thick/sticky, low viscosity = runny magma
volcano -A cone which is formed above and around a vent by accumulations of erupted volcanic materials like pumiceand other volcanic rocks.
vents- The vent is an opening at the Earth's surface through which volcanic materials are released.
erupts - The way liquids, solids and gases are expelled on the Earth's surface by volcanic activity. This can range from explosive outbursts to quiet, noiseless lava-outcome.
dormant - A volcano which is presently inactive but which may erupt again.
active - A volcano which is erupting.
cinder cone/shield/stratovolcano (see Lesson 7 Power point presentation for facts/definitions of these types of volcanoes)
pryoclastic flow - Mixtures of hot gases and volcanic ash travelling very quickly down the slope of a volcano.
cinder - Light fragments of solidified lava, between 64mm and 30cm in size, are very hot, can start fires.
pumice - Cinder so bubbly that it floats in water. (the bubbles are from air caused by water mixed with magma)
vulcanologist - a scientist who studies volcanoes!
viscosity - thickness/stickyness of magma. high viscosity = thick/sticky, low viscosity = runny magma