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.
Explain why shield volcanoes tend to have less explosive eruptions than stratovolcanoes.
Explain why volcanic eruptions are more common at convergent and divergent plate boundaries.
Name one example of a famous stratovolcano.
What is a caldera?
What is tephra?
What is the main component of volcanic ash?
What is the main difference between magma and lava?
A town is located 15 km from a volcano. If a pyroclastic flow travels at an average speed of 100 km/h, how many minutes would it take to reach the town?
A volcano emits 2.5 × 108 kg of ash during an eruption. If the average density of the ash is 900 kg/m3, calculate the approximate volume of ash released in cubic meters.
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?
Describe the sequence of events that leads to the formation of a volcanic island arc.
Explain how the viscosity of magma affects the shape and eruption style of a volcano. Include examples of different types of volcanoes in your answer.
