Answer:
magma
molten rock in the earth's crust
Volcanic Eruptions
Art:In an eruption of a volcano, magma (liquid rock) may flow from vents as a liquid called lava.
volcanology
the branch of geology that studies volcanoes
Studying Volcanoes
Volcanology is the branch of geology that focuses on volcanoes.
caldera
a large crater caused by the violent explosion of a volcano
Video:Crater Lake is located within a huge volcanic caldera in the Cascade Range of southwestern Oregon.
earth tremor
a small earthquake
Many volcanologists work in observatories, from which they keep track of earth tremors and other signs of volcanic activity.
volcano
a fissure in the earth's crust through which gases erupt
A volcano is an opening in Earth's crust.
Mid-Atlantic Ridge
a very long narrow elevation on the ocean floor that runs all the way from Iceland in the North Atlantic to Bouvet Island in the South Atlantic
This type of volcano is common along the Mid-Atlantic Ridge, a mountain chain under the Atlantic Ocean.
hot spring
a natural spring of water at a temperature of 70 F or above
Hot Springs, Geysers, and Fumaroles
Hot springs, geysers, and fumaroles are other types of volcanic activity.
erupt
start suddenly
When a volcano erupts, hot gases and melted rock from deep within Earth find their way up to the surface.
eruption
the sudden occurrence of a violent discharge
Volcanic eruptions may be very destructive.
volcanic
relating to eruptions of gas and lava from the earth's crust
Volcanic eruptions may be very destructive.
Crater
a faint constellation in the southern hemisphere near Hydra and Corvus
Video: Crater Lake is located within a huge volcanic caldera in the Cascade Range of southwestern Oregon.
hot spot
a place of political unrest and potential violence
They form at “ hot spots” in Earth's crust.
geyser
a spring that discharges hot water and steam
Hot Springs, Geysers, and Fumaroles
Hot springs, geysers, and fumaroles are other types of volcanic activity.
lava
rock that in its molten form issues from volcanos
Volcanic Eruptions
Art:In an eruption of a volcano, magma (liquid rock) may flow from vents as a liquid called lava.
fissure
a long narrow depression in a surface
This material may flow slowly out of a fissure, or crack, in the ground, or it may explode suddenly into the air.
geothermal
of or relating to the heat in the interior of the earth
This energy, called geothermal energy, is difficult for people to control.
crater
a bowl-shaped geological formation at the top of a volcano
A crater, or bowl-shaped pit, usually lies at the top.
meter
a basic unit of length (approximately 1.094 yards)
The birth of a volcano was witnessed between 1943 and 1952, when a smoking hole in a Mexican farmer's cornfield erupted into a new mountain called Paricutín that eventually stood 1,400 feet (425 meters) above the level ground around it.
cascade
a small waterfall or series of small waterfalls
Video:Crater Lake is located within a huge volcanic caldera in the Cascade Range of southwestern Oregon.
molten
reduced to liquid form by heating
Molten rock rises between the plates as they move apart.
sea level
level of the ocean's surface
Within a few years it built up to an area of 1 square mile (2.5 square kilometers), with a peak more than 560 feet (170 meters) above sea level.
liquid
fluid matter having no fixed shape but a fixed volume
Volcanic Eruptions
Art:In an eruption of a volcano, magma ( liquid rock) may flow from vents as a liquid called lava.
Explanation:
yw have a nice day
