Volcanoes can occur at Subducting boundaries Subducting boundaries Hot Spots Hot Spots Any type of...

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?