by BlastRoom
Identify eruption types, volcanic materials, hazards, and safe responses.
#volcanoes#matatag_science_6

20 questions
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What do scientists call molten rock beneath Earth's surface?
Which term describes a stream of molten rock moving downhill from a volcano's opening?
An erupted rock particle measures 0.8 mm across. Which group does it belong to?
A class collects erupted fragments measuring 12 mm across. How should these be classified?
An erupted fragment is 90 mm across and was partly molten when thrown into the air. What is it called?
A solid, angular fragment 100 mm across is thrown from a volcano. How should it be classified?
Which released material forms when dissolved substances escape from rising molten rock?
A thick mixture of water and loose volcanic debris rushes down a channel near Pinatubo. What is this called?

A hot, dense cloud of rock fragments races along the ground down a volcano's slope. Which hazard is this?

During ashfall, an adult must briefly go outdoors. Which protection best reduces inhalation of fine ash?

Which eruption type mainly releases molten rock that spreads over the ground rather than violently blasting fragments into the air?
In 1991, Pinatubo violently blasted enormous amounts of fragments high into the air. How is this eruption classified?
What activity is shown by the glowing jets rising above the volcano's opening?

Which statement correctly compares the two main eruption types?
A volcanic cone becomes larger over repeated eruptions. Which process best explains its growth?
An eruption has ended, but thick loose deposits remain on the slopes. Which weather condition can wash them into nearby rivers?
A class will inspect 12 mm volcanic fragments outdoors. Which magnifying tool is more practical for quickly viewing their surfaces?
A roof's safe extra load is 600 kg. Ash adds 450 kg and rainwater adds 200 kg. Why is sheltering beneath it dangerous?
Ground swelling, more volcanic earthquakes, and rising gas emissions are recorded. Which conclusion should guide residents' response?
A slow lava flow approaches wooden houses. Which damage is most directly caused when the molten rock reaches them?

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Earth's Rotation
20 questions