Volcanoes can occur atVolcanoes can occur at
Subducting boundariesSubducting boundaries Hot SpotsHot Spots Any type of climateAny type of climate
VolcanoesVolcanoes
They make new landThey make new land They made the oceansThey made the oceans They made the airThey made the air They are deadlyThey are deadly
Other features of a volcano Other features of a volcano areare
Geysers Geysers Hot SpringsHot Springs
Molten rock inside the Earth Molten rock inside the Earth is calledis called
Molten rock or magma that Molten rock or magma that flows on the Earth’s surface flows on the Earth’s surface
is calledis called
What would be a clue that a What would be a clue that a volcano might erupt?volcano might erupt?
Small earthquakes near the volcanoSmall earthquakes near the volcano A bulge or tilt in the ground near the A bulge or tilt in the ground near the
volcanovolcano
The ash fall from a volcanoThe ash fall from a volcano
Can collapse buildingsCan collapse buildings Kill crops and livestockKill crops and livestock Is very costly to clean upIs very costly to clean up Damage lungsDamage lungs Pollute water sourcesPollute water sources Travels the furthestTravels the furthest
Which type of lava is sharp and Which type of lava is sharp and chunky?chunky?
Which type of lava has a glassy Which type of lava has a glassy surface with rounded wrinkles?surface with rounded wrinkles?
What type of lava results from What type of lava results from underwater eruptions?underwater eruptions?
The largest volcano discovered The largest volcano discovered anywhere isanywhere is
A “sleeping” volcano is A “sleeping” volcano is classified asclassified as
A volcano that is currently A volcano that is currently erupting is said to beerupting is said to be
A volcano that is not expected A volcano that is not expected to erupt again is said to beto erupt again is said to be
Mt. St. Helens is located in Mt. St. Helens is located in which state?which state?
Have there ever been active Have there ever been active volcanoes in Virginia?volcanoes in Virginia?
A rock that is ejected from a A rock that is ejected from a volcano that is about the size volcano that is about the size
of rice is calledof rice is called
The largest projectiles given off The largest projectiles given off by a volcanic blast areby a volcanic blast are
Shield volcanoes areShield volcanoes are
Volcanologists are Volcanologists are measuring amounts of this measuring amounts of this
gas/gases in hopes of gas/gases in hopes of predicting eruptions.predicting eruptions.
What is the name of the first What is the name of the first national park that was national park that was formed by a volcanic formed by a volcanic
eruption?eruption?
The Hawaiian Goddess of The Hawaiian Goddess of Fire isFire is
Sunset Crater is an example Sunset Crater is an example of what type of volcano?of what type of volcano?
Mt. St. Helens and Mt. Fuji Mt. St. Helens and Mt. Fuji are examples of what type are examples of what type
of volcano?of volcano?
The biggest volcanoes are The biggest volcanoes are what type?what type?
This mountain range in the This mountain range in the Pacific Northwest has a lot of Pacific Northwest has a lot of
volcanos.volcanos.
The large explosion that The large explosion that occurred in 79 AD and totally occurred in 79 AD and totally destroyed Pompeii is which destroyed Pompeii is which
volcano?volcano?
California, Oregon, and California, Oregon, and Washington are part of theWashington are part of the
Black volcanic glassBlack volcanic glass
Has gas bubblesHas gas bubbles
Vietnam War Memorial is made Vietnam War Memorial is made ofof
Statues are made ofStatues are made of
Most abundant rock on Most abundant rock on EarthEarth
The holes in some igneous The holes in some igneous rocks are caused by rocks are caused by
escapingescaping
How are igneous rocks How are igneous rocks formed?formed?
A rock that cools inside the A rock that cools inside the Earth is classified asEarth is classified as
Extrusive igneous rocksExtrusive igneous rocks
Intrusive rocksIntrusive rocks
Cool slowlyCool slowly Cool inside the Cool inside the
EarthEarth Large crystalsLarge crystals
Extrusive Igneous Rocks Extrusive Igneous Rocks
Cool rapidlyCool rapidly Cool outside the Cool outside the
EarthEarth Small or no Small or no
crystalscrystals
Because granite cools below Because granite cools below the surface of the Earth, it isthe surface of the Earth, it is
Some extrusive igneous Some extrusive igneous rocks, such as obsidian, are rocks, such as obsidian, are
glassy because theyglassy because they
Coarse grained rocks are Coarse grained rocks are formed when formed when
Fine grained rocks are Fine grained rocks are formed whenformed when
What can the cooling rate of What can the cooling rate of molten rock determine in molten rock determine in
igneous rocks?igneous rocks?