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Flashcards on Volcanoes
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What is a volcano?
A mountain or hill that has an opening through which molten rock and gases escape from deep within the Earth.
What causes a volcanic eruption?
When molten rock called magma rises to the surface, it can cause an eruption.
What are the three types of volcanoes?
Stratovolcanoes, shield volcanoes, and cinder cone volcanoes.
Where are volcanoes commonly found?
They are commonly found along tectonic plate boundaries.
What is volcanic ash?
Small fragments of volcanic rock and glass produced during explosive eruptions.
How is a volcanic island formed?
When an underwater volcano erupts and builds up lava flows and ash layers to form an island.
What are pyroclastic flows?
Swift-moving currents of hot gas and volcanic matter that flow down the slopes of a volcano.
What is a caldera?
A large depression or crater that forms after the evacuation of a magma chamber beneath a volcano.
What is volcanic lightning?
Electrical discharges that occur during volcanic eruptions.
What is the Ring of Fire?
A major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.
What is a volcanic hotspot?
An area in the middle of a tectonic plate where molten rock rises to the surface, forming a volcano.
What is volcanic gas?
Gases released during volcanic eruptions, including water vapor, carbon dioxide, and sulfur dioxide.
What is volcanic tremor?
Continuous vibration or shaking of the ground caused by volcanic activity.
What is a volcanic eruption column?
A column of hot volcanic ash and gas that rises into the atmosphere during an explosive volcanic eruption.
What is the largest volcano in the world?
Mauna Loa in Hawaii.
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Test Your Knowledge
What is a volcano?
A mountain or hill that has an opening through which molten rock and gases escape from deep within the Earth.
A large body of water surrounded by land.
A type of weather phenomenon with thunder and lightning.
A famous rock band from the 1980s.
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What causes a volcanic eruption?
Global warming
Heavy rain
When molten rock called magma rises to the surface, it can cause an eruption.
Alien invasion
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Where are volcanoes commonly found?
In shopping malls
Along tectonic plate boundaries
On top of skyscrapers
Inside ice cream cones
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What are pyroclastic flows?
A type of dance move
Swift-moving currents of hot gas and volcanic matter that flow down the slopes of a volcano.
Furniture made from volcanic rocks
Songs sung by volcanoes
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What is volcanic gas?
A type of car fuel
Gases released during volcanic eruptions, including water vapor, carbon dioxide, and sulfur dioxide.
A type of air freshener
A type of bubble gum flavor
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What is a volcanic hotspot?
An area in the middle of a tectonic plate where molten rock rises to the surface, forming a volcano.
A volcano-shaped hat
A popular vacation destination
A spicy condiment
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What is volcanic tremor?
A special type of earthquake
Continuous vibration or shaking of the ground caused by volcanic activity.
A type of musical instrument
A rare mineral found only in volcanoes
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What is a caldera?
A type of pasta dish
A large depression or crater that forms after the evacuation of a magma chamber beneath a volcano.
A volcanic rock formation
A type of reptile
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What is a volcanic island formed?
By painting an island with volcanic colors
When an underwater volcano erupts and builds up lava flows and ash layers to form an island.
By planting trees in the shape of a volcano
By placing a volcano-shaped sculpture in the ocean
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What is the Ring of Fire?
A major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.
A circus act involving fire
A movie about volcanoes
A type of spicy food
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