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Questions and Answers
What type of eruption is characterized by the expulsion of steam, water, ash, volcanic bombs, and volcanic blocks, without the ejection of new magma?
Which type of eruption is caused by the contact of water and magma?
Which eruptive style is characterized by fluid basaltic lava thrown into the air in jets from a vent or fissure?
Which volcano exhibits the distinctive Strombolian eruptive style?
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Which type of eruption is associated with the ejection of incandescent dust, scoria, and volcanic bombs with little water vapor?
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Which volcano is shown in Figure 10, depicting a Phreatic eruption?
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What volcanic hazard is being mentioned in the text?
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What should you do before a volcanic eruption?
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What is the purpose of taking precautionary measures for volcanic eruption?
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What is the main focus of the lesson in this text?
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What is the purpose of the 'Word Search' activity mentioned in the text?
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Which of the following is NOT mentioned as a precautionary measure before a volcanic eruption?
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What is the other name for Earth's internal heat?
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Which is NOT the surface manifestation of the geothermal system?
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What do you call the geothermal element that usually occurs in the form of water or meteoric water which can be liquid or steam depending on the temperature and pressure conditions?
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What potentially active volcano in the province of Albay and part of Camarines Sur that has been known as a geothermal source in the Philippines since 1971?
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Which volcano supplies the Mak-ban Geothermal power plant?
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What is the main process that occurs during a volcanic eruption?
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What is the rubric criteria for content related to impending signs of volcanic eruption?
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What is the rubric criteria for creativity in making the poster?
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What is the rubric criteria for relevance to the lesson?
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What is the rubric criteria for timeliness related to the theme?
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How many impending signs of volcanic eruption would be included in a 'Very good' level submission?
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What level of submission would include the criteria: 'The work is needs improvement on neatness, use of color and illustrations'?
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What is the purpose of transferring heat from the geothermal fluid to a second fluid?
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What is the purpose of the teakettle model in this investigation?
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Which of the following materials is NOT mentioned for constructing a turbine in this investigation?
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What is the purpose of varying the size of the opening from which the steam exits?
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Which of the following observations is directly related to the guide question "What do you observe about the rate of spinning as the temperature of water changes?"
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What is the primary safety concern mentioned in the investigation?
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Study Notes
Types of Volcanic Eruptions
- Phreatic Eruption: ejects a mixture of steam, water, ash, volcanic bombs, and volcanic blocks without the expulsion of new magma from the chamber
- Phreatomagmatic Eruption: an explosive eruption due to contact of water and magma, ejecting steam and pyroclastic materials
- Hawaiian Eruption: calmest type of eruption, characterized by fluid basaltic lava thrown into the air in jets from a vent or fissure at the summit or side of the volcano
- Strombolian Eruption: a type of eruption that exhibits periodic weak to violent eruption, characterized by fountain lava, and associated with ejection of incandescent dust, scoria, and volcanic bombs with little water vapor
Volcanic Hazards
- Localized landslides, rockfalls, and landslides from the summit area
- Volcanic mudflow: a mixture of volcanic debris and water that flows down the slope of the volcano
Precautionary Measures for Volcanic Eruption
- Before: be updated about the status of the volcano by listening to radio, watching TV, or browsing online news pages
- During: follow evacuation procedures and instructions from authorities
- After: be cautious of volcanic hazards such as lahars, pyroclastic flows, and ashfall
Geothermal Energy
- Definition: energy generated from the heat of the Earth's interior
- Type of energy that can be harnessed from volcanoes
- Volcanoes in the Philippines that are sources of geothermal energy
- Geothermal energy flow in a geothermal power plant
Assessment Questions
- What is the other name for Earth's internal heat? (Answer: geothermal energy)
- Which is NOT the surface manifestation of the geothermal system? (Answer: mud volcanoes)
- What do you call the geothermal element that usually occurs in the form of water or meteoric water? (Answer: geothermal fluid)
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Description
Test your knowledge on phreatic and phreatomagmatic eruptions with this quiz. Learn about the explosive nature of these volcanic events involving steam, water, ash, and magma interactions.
