Exercise
Form 5: Volcanoes and Magma vs Lava
Study how volcanoes form and understand the key differences between underground magma and surface lava.
Questions
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MultiChoice
What is magma?
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MultiChoice
What is lava?
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WordsBox
Underground melted rock is called ____ but once it flows out onto the surface it becomes ____
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MultiChoice
What is the bowl-shaped opening at the top of a volcano called?
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MultiChoice
Where does magma collect underneath a volcano before an eruption?
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WordsBox
Magma travels up through a central pipe called a ____ before erupting out of the volcano's ____
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MultiChoice
What do we call a volcano that is currently erupting or showing signs of erupting soon?
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MultiChoice
What do we call a sleeping volcano that has not erupted in a long time but could erupt again?
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WordsBox
An ____ volcano is dead and is unlikely to ever ____ again.
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MultiChoice
What kind of rock forms when lava cools and hardens on Earth's surface?
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MultiChoice
What builds up pressure inside magma to trigger volcanic eruptions?
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WordsBox
Volcanic ____ is made of tiny particles of pulverized ____ and glass thrown into the air.