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 9
Describe how a hotspot volcano forms.
Describe how scientists monitor volcanoes to predict eruptions.
Describe the difference between an active, dormant, and extinct volcano.
Describe the role of plate tectonics in the formation of volcanoes.
Describe two ways in which volcanic eruptions can affect the climate.
Explain how volcanic eruptions can impact air travel.
Explain what a pyroclastic flow is and why it is dangerous.
Context: Scientists observe that the ground around a volcano is slowly rising and small earthquakes are becoming more frequent. What might these observations indicate about the volcano's activity?
Which of the following best describes a cinder cone volcano? (1) Large and gently sloping (2) Small and steep-sided (3) Formed only underwater (4) Made entirely of solidified lava flows
Which of the following best describes a volcano? (1) A mountain formed by the accumulation of lava and ash (2) A deep ocean trench (3) A large lake formed by a meteorite impact (4) A valley created by river erosion
Which of the following best explains why some volcanoes erupt explosively while others have gentle eruptions? (1) The amount of water in the magma (2) The viscosity of the magma (3) The color of the lava (4) The height of the volcano
Which of the following is a benefit of volcanic activity? (1) Destruction of habitats (2) Creation of fertile soils (3) Air pollution (4) Earthquakes
Fill in the blank: The area around the Pacific Ocean with many volcanoes is called the __________.
Fill in the blank: The largest volcano in the solar system is __________, located on Mars.
Fill in the blank: The layer of the Earth where most magma originates is the __________.
Fill in the blank: The opening through which volcanic material is ejected is called a __________.
True or False: All volcanic eruptions are equally dangerous.
True or False: All volcanoes are found at tectonic plate boundaries.
True or False: Lava flows can travel faster than a car on a highway.
True or False: The Ring of Fire is an area with a high concentration of volcanoes around the Pacific Ocean.
