VOCAB 1
foamy or full of air
What is frothy?
areas in the mantle where rocks melt
What is hot spots?
melted rock that is underground
What is magma?
an area around the Pacific Ocean where most of the world's volcanoes and earthquakes exist.
The number of different types of volcanoes
What is 4?
wind on earth that moves west to east and is the major source of weather movement
an opening in the Earth's crust
What is a vent?
Material blown out of the volcano that cools before it falls
What is cinder?
The layer of earth where the crust is located
What is the outermost layer?
the number of years that must pass before a volcano is extinct
What is 10,000?
the property that causes a liquid to flow
What is viscosity?
steam and hot water that spews from the earth
What is a geyser?
the process that breaks down rocks
the number of active volcanoes there are in the world
What is about 1500?
measures the intensity or magnitude of an earthquake
a cloud of ash, dust and other debris
What is pyroclastic flow?
to protrude as in a bump
What is bulging?
the center of the earth
What is the core?
lava that erupts underwater and cools quickly
What is pillow lava?
the transfer of heat by movement
What is convection?
smooth lava with wrinkles and twists
What is pahoehoe?
a swollen bubble, puffed out
What is bulbous?
main opening of a volcano
The four layers of the Earth
What is the inner core, outer core, mantle and crust?
how many times a volcano can erupt
What is continuously for years?