Magma is extremely hot
liquid
and semi-liquid rock located under Earth’s surface. When magma flows onto Earth’s surface, it is called lava.
Is lava always liquid Why?
But
all lavas are not liquid
; some are more viscous and flow down as honey would do. … Other lavas are even thicker, and practically do not flow at all.
Is lava a liquid yes or no?
Is lava wet? … If we’re using it as an adjective (definition: covered or saturated with water or another liquid), then
lava is a liquid state
so it therefore it’s wet. But nothing touched by lava is left damp or moist, which means that you can’t really use wet as a verb to describe lava.
Is lava hard or soft?
Hot, soft rock
is called lava. It comes from inside the volcano. It can be bright red and feels like fire. When it cools, it turns black.
Can lava be solid?
Lava is a liquid, that cools into rock, which
is a solid
. BACKGROUND: Lava is molten rock (a liquid) that flows on the earth’s surface. … First, as it cools, the lava changes state, from liquid to solid.
Can lava melt diamonds?
To put it simply,
a diamond cannot melt in lava
, because the melting point of a diamond is around 4500 °C (at a pressure of 100 kilobars) and lava can only be as hot as about 1200 °C.
Can you touch lava?
Lava won’t kill you if it briefly touches you
. You would get a nasty burn, but unless you fell in and couldn’t get out, you wouldn’t die. With prolonged contact, the amount of lava “coverage” and the length of time it was in contact with your skin would be important factors in how severe your injuries would be!
Does lava have a taste?
Hot volcano lava would instantly burn away your taste buds so
the taste would not be discernible
. It would also most likely be fatal.
Is lava hotter than fire?
While lava can be as hot as 2200 F, some flames can be much hotter, such as 3600 F or more, while a candle flame can be as low as 1800 F.
Lava is hotter than a typical wood
or coal-buring fire, but some flames, such as that of an acetylene torch, is hotter than lava.
How far can lava flows go?
Fluid basalt flows can extend
tens of kilometers from an erupting vent
. The leading edges of basalt flows can travel as fast as 10 km/h (6 mph) on steep slopes but they typically advance less than 1 km/h (0.27 m/s or about 1 ft/s) on gentle slopes.
Which is hotter magma or lava?
Magma is hotter than lava
, depending on how recently the lava reached the surface and if the magma and lava are from the same magma chamber below the…
Is lava hotter than the sun?
Lava is indeed very hot, reaching temperatures of 2,200° F or more. But even lava can’t hold a candle to the sun! At its surface (called the “photosphere”), the sun’s temperature is a whopping 10,000° F! That’s
about five times hotter than the hottest lava on Earth
.
What does lava feel like?
Lava may look like a liquid, but it’s not like water:
it’s too sticky and viscous
. “So you’d be sitting on top of the lava flow,” says Janine Krippner, a volcanologist at Concord University. The thickness of the lava is the same reason why volcanologists trying to take samples don’t use buckets.
Can you cool lava?
You could try spraying the
lava with water and cooling it to the point of freezing
, sure. … This also means that it takes ages for water to cool something down. Most basaltic lava flows come out their vents at around 1,000°C (1,832°F), and they only completely solidify at around several hundred degrees below that.
Does Obsidian exist?
obsidian, igneous rock occurring as a
natural glass formed by the rapid cooling of viscous lava from volcanoes
. Obsidian is extremely rich in silica (about 65 to 80 percent), is low in water, and has a chemical composition similar to rhyolite. Obsidian has a glassy lustre and is slightly harder than window glass.
Which lava only occurs underwater?
Andesitic lavas
, because of their high viscosity and high gas content, typically produce violent eruptions. Active deep andesitic eruptions have only recently been discovered and observed. They are only approachable because their explosiveness is dampened by the depths at which they occur.
