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Ivack 6th Chapter 7
62 cards·by livack
string of volcanoes (ex: the Phillipines)
island arc
weak spot on the crust where molten magma comes to the surface
volcano
magma high in silica is (dark/light)
light
substance made of two elements chemically combined
compound
gas production or bubbles is a (chemical/physical) change
chemical
molten material BELOW the crust
magma
a liquid's resistance to flow
viscosity
simplest form of matter that CANNOT be broken down
element
magma low in silica is (dark/light)
dark
magma with less silica has (higher/lower) viscosity
less
lower temperatures result in (lower/higher) viscosity
higher
Pahoehoe has (high/low) viscosity
low
True or False: Aa has high viscosity
true
True or False: Pahoehoe looks like wrinkles or coils
true
honey has a (high/low) viscosity
high
string of volcanoes (ex: the Phillipines)
island arc
weak spot on the crust where molten magma comes to the surface
volcano
magma high in silica is (dark/light)
light
substance made of two elements chemically combined
compound
gas production or bubbles is a (chemical/physical) change
chemical
molten material BELOW the crust
magma
a liquid's resistance to flow
viscosity
simplest form of matter that CANNOT be broken down
element
magma low in silica is (dark/light)
dark
magma with less silica has (higher/lower) viscosity
less
lower temperatures result in (lower/higher) viscosity
higher
Pahoehoe has (high/low) viscosity
low
True or False Aa has high viscosity
true
True or False Pahoehoe looks like wrinkles or coils
true
honey has a (high/low) viscosity
high
string of volcanoes (ex: the Phillipines)
island arc
weak spot on the crust where molten magma comes to the surface
volcano
magma high in silica is (dark/light)
light
substance made of two elements chemically combined
compound
gas production or bubbles is a (chemical/physical) change
chemical
molten material BELOW the crust
magma
a liquid's resistance to flow
viscosity
simplest form of matter that CANNOT be broken down
element
magma low in silica is (dark/light)
dark
magma with less silica has (higher/lower) viscosity
less
lower temperatures result in (lower/higher) viscosity
higher
Pahoehoe has (high/low) viscosity
low
True or False Aa has high viscosity
true
True or False Pahoehoe looks like wrinkles or coils
true
honey has a (high/low) viscosity
high
density is a (chemical/physical) property
physical
molten material ABOVE the crust
lava
many volcanoes that rim the Pacific Ocean
Ring of Fire
magma collects in a pocket underground called the ______
magma chamber
(quiet/explosive) eruptions are high in silica and have high viscosity
explosive
long tube connecting to the magma chamber is the _______
pipe
magma that hardens sideways between rock layers
sill
(quiet/explosive) eruptions produce Pahoehoe and aa
quiet
a volcano that is unlikely to erupt again is considered _______
extinct
molten rock and gases escape the volcano through the _____
vent
forms from a collapsed volcanic mountain
caldera
looks like a tooth; forms from hardened magma in the pipe
volcanic neck
(quiet/explosive) eruptions produce pyroclastic flow
quiet
a fountain of water and steam that erupts from the ground
geyser
magma that hardens vertically between rock layers
dike
as pressure decreases inside a volcano
gas bubble get (smaller/bigger) (think of a bottle of pop)
(quiet/explosive) eruptions are low in silica and have low viscosity
quiet