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Volcano!

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    Review of Volcano!
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  • Earth has ________________ of volcanoes.
    thousands
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  • Joanne Green is a _____________, a scientist who studies volcanoes.
    Volcanologist.
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  • True or False: Volcanoes are large mountains that pour out lava.
    False: Volcanoes start deep beneath the Earth's surface.
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  • What is another word for Earth's surface?
    Crust.
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  • If you walk on hot lava, it can ___________ your shoes.
    melt
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  • About ______________ of the volcanoes on Earth are active now.
    1 500
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  • Do volcanoes erupt thick or thin lava?
    Some volcanoes erupt thin lava. Some volcanoes erupt thick lava.
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  • Some volcanoes form on _________ and others rise up from the bottom of the ____________.
    land; ocean
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  • Most volcanoes are near the ___________ Ocean.
    Pacific
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  • Most of the volcanoes on Earth are in a circle called the ________ of __________.
    Ring of Fire.
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  • True or False: Many people live near volcanoes.
    True.
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  • Some people ___________ the land near volcanoes because the soil is good for growing crops.
    farm
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  • True or False: Humans always know when a volcano is going to erupt.
    False: Many volcanoes can erupt without warning!
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  • A volcano called Mount St. Helens erupted in the year ____________.
    1980
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  • True or False: 20 years after Mount St. Helens erupted, everything around the volcano is still dead.
    False: Trees have grown back and animals live in the forests again.
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  • Volcanoes are one of the ______________ on Earth that we live with but cannot control.
    forces
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