Volcanoes and Volcanic Activity
Physics ⇒ Earth and Space Physics
Volcanoes and Volcanic Activity starts at 7 and continues till grade 12.
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See sample questions for grade 8
Describe how a volcanic island can form.
Describe one way scientists monitor volcanoes for signs of an eruption.
Describe one way volcanic eruptions can benefit the environment.
Describe the difference between an active and an extinct volcano.
Describe what happens during a volcanic eruption.
Explain how volcanic eruptions can create new landforms.
A scientist measures the temperature of lava flowing from a volcano and finds it to be 1,200°C. If the surrounding air temperature is 20°C, what is the temperature difference between the lava and the air?
A volcano is located near a convergent plate boundary where an oceanic plate is subducting beneath a continental plate. Describe the process that leads to magma formation in this setting.
Volcanoes are most commonly found at which type of plate boundary?
(1) Divergent
(2) Convergent
(3) Transform
(4) All of the above
Which of the following best describes a caldera?
(1) A small hill formed by lava
(2) A large depression formed after a volcano erupts and collapses
(3) A narrow crack in the Earth's crust
(4) A type of volcanic rock
Which of the following best describes a cinder cone volcano?
(1) Broad, gently sloping sides
(2) Steep sides, built from ash and cinders
(3) Large depression
(4) Formed only under the ocean
Which of the following best describes a dormant volcano?
(1) Currently erupting
(2) Has not erupted in recorded history and is unlikely to erupt again
(3) Has not erupted recently but may erupt again
(4) Erupts continuously
Fill in the blank: The area around the Pacific Ocean with many volcanoes is called the Ring of _______.
Fill in the blank: The layer of the Earth where most magma forms is the _______.
Fill in the blank: The molten rock beneath the Earth's surface is called _______.
Fill in the blank: The opening at the top of a volcano is called the _______.
True or False: All volcanic eruptions are dangerous to humans.
True or False: All volcanoes erupt in the same way.
True or False: Lava is called magma before it reaches the Earth's surface.
True or False: Volcanic ash can disrupt air travel.
