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Volcanoes Quiz
'nuff said
| stupid quizzes | idiotic |
|---|---|
| Where do volcanoes form? | hot spots, diverging plates, and converging plates |
| What volcanic structures can form if the magma in the chamber stays beneath the surface and hardens? | dikes, sills, batholiths, and dome mountains |
| What will a magma high in silica have as a viscosity? | a high one |
| What are volcanic eruptions classified as? | explosive or quiet |
| What kind of volcano do quiet eruptions create? | shield volcanoes |
| What kind of volcano do explosive eruptions create? | cinder cones |
| What kind of volcano can be created from both types of eruptions? | composite volcanoes |
| What volcanic structure is formed when magma hardens in a volcanic pipe? | a volcanic neck |
| Where does magma reach the surface as lava? | a vent |
| volcano | a weak spot in the crust where molten material, or magma, comes to the surface |
| magma | a molten mixture of rock forming substances, gases, and water from the mantel |
| lava | magma that has reached the surface |
| Ring of Fire | a major volcanic belt formed by the many volcanoes that rim the Pacific Ocean |
| Another name for the Ring of Fire | the Pacific Rim |
| island arc | a string of island formed by the volcanoes along a deep ocean trench |
| hot spot | an area where material from deep within the mantel rises, then melts, forming magma |
| Where are most of Earth's volcanoes found? | Along the boundaries of Earth's plates in volcanic belts. |
| How do hot spots form? | When magma erupts through the crust and reaches the surface. |
| What features form as an ocean plate moves across a hot spot? | volcanic mountains, geysers, mud pots, and fumaroles |
| element | a substance that cannot be broken down into other substances |
| compound | a substance made of two or more elements that have been chemically combined |
| physical property | any characteristic of a substance that can be measured without changing the composition of the substance |
| chemical property | an property that produces a change in the composition of matter |
| viscosity | the resistance of a liquid to flowing |
| silica | a compound made up of oxygen and silicon |
| pahoehoe | a fast moving, hot lava that has a low viscosity |
| aa | a slower moving, cooler lava that has a high viscosity |
| Why is it helpful to know the chemical properties of a substance? | Each substance has its own physical and chemical properties, making it easy to identify individual ones if you know their properties |
| What causes some liquids to flow more easily than others? | The difference in different liquids' viscosity. |
| What factors determine the viscosity of magma? | silica content and temperature |
| What two factors mainly cause eruptions to be explosive? | high silica and water content |
| Magma is a hot, liquid mixture that changes to solid rock when it cools and harden. Which of these characteristics are physical properties? | the "freezing point" (when it becomes a solid) and temperature |
| Which has a higher viscosity? A fast flowing liquid or a slow flowing one? | slow flowing |
| What can you infer about the amount of friction among the particles of a liquid that has a low viscosity? | there isn't much friction |
| magma chamber | a pocket beneath a volcano where magma collects |
| pipe | a long tube in the ground that connects the magma chamber to the Earth's surface |
| vent | the opening through which molten rock and gases leave a volcano |
| lava flow | the area covered by lava as it pours out of a vent |
| crater | a bowl-shaped area that may form at the top of a volcano around the central vent |
| pyroclastic flow | occurs when an explosive eruption hurls out a mixture of hot gases, ash, cinders, and bombs |
| dormant | describes a volcano that is not currently active, but may become active in the future |
| extinct | describes a volcano that is unlikely to erupt again |
| Describe the process of a volcano erupting. | The force of the expanding gases pushes magma from the magma chamber through the pipe until it flows or explodes out of the vent. |
| What are a volcano's stages of activity? | active, dormant, and extinct |
| What are the main parts of a volcano? | the chamber, pipe, and vent |
| Describe the order of parts through which magma travel through as it moves to the surface. | Magma collects in the chamber, then travels upward through the pipe, and exits the volcano thorugh the vent. |
| What are some visible warning signs of an eruption? | seismic activity, ground deformation (change, movement, bulging), smoke, unusual animal activity |
| What is an evacuation route/method used during an eruption? | A route marked by signs leading people away from the danger zones. |
| What is a sign of a past eruption? | hardened lava flows, calderas/craters, ash deposits |
| What does a green triangle represent in the volcano rating scale? | No signs of the volcano erupting soon or not erupting |
| What does a yellow triangle represent in the volcano rating scale? | The volcano is showing signs of increasing activity. |
| What does a orange triangle represent in the volcano rating scale? | The volcano shows a high level of threat. |
| What does a red triangle represent in the volcano rating scale? | The volcano is currently erupting or will do so soon. |
| How was the destruction of Pompeii and Herculaneum a tourist boost? | Mount Vesuvius preserved the towns and many of the everyday artifacts, leading 2.6 million tourists visit it and the preserved archaeological sites everyday. |
| What is andisol? | volcanic ash |
| How is andisol created? | After air and rain have mixed with and acted on the lava. |
| What kind of soil does andisol help create? | very fertile soil |
| What types of minerals are commonly found in volcanoes? | Many metal ores (iron, silver, gold) and gemstones (diamonds, emeralds)after volcanic material cools fairly deep underground a volcano goes dormant or extinct. |
| Why can't planes fly through ash clouds? | It can clog and overheat the engines, making them shut off. |
| How hot can plane engines get when overheating from ash clouds? | over 2000 degrees farenheit |
| How did volcanic eruptions cause an ice age? | Sulfur dioxide from volcanoes reflected the sun's rays back into space long enough to lower Earth's temperature. |
| How do Indonesians farm on volcanoes? | They make terraced fields called patties to grow rice. |
| Why did Eyjafjallajakull's eruption have such a widespread influence? | Around 80% of the ash was ejected into the atmosphere where it stayed for weeks and spread over Europe. |
| rift | long, deep cracks formed when plates seperate |
| What type of property is a substance's ability to burn? | chemical |
| What type of eruption are pahoehoe and aa produced from? | quiet eruptions |
| Why are ash, cinders, and bombs produced only in explosive eruptions? | They haven't had the time to cool and there isn't enough force to push ash out in quiet eruptions. |
| What kind of volcano do divergent plate boundaries create? | shield volcanoes |
| What kind of volcano do convergent plate boundaries create? | composite volcanoes |
| Why do volcanoes differ in size and shape? | The type of lava, eruptions, and process that formed them differ. |
| Alternative name for a composite volcano. | strato volcano |
| What type of eruption do strato volcanoes produce? | plinear eruptions |
| Describe plinear eruptions. | explosive and big |
| What could make a dormant volcano active again? | a natural disaster |
| thermal anomaly | an increase in a land's temperature that happens before a volcanic eruption or earthquake that disappears afterward |
| Which volcano produced the largest known eruption? | Mount Tabora |
| When was the largest known eruption? | April 10, 1815 |
| What is the newest cinder cone formed in the Northern Hemisphere? | Paracuta in Mexico |
| How are calderas formed? | When the magma chamber no longer supports the volcano and the walls collapse inward. |
| Why would the magma chamber no longer be able to support the volcano? | If a large eruption emptied it out. |
| How big must a "caldera" be to be considered a caldera? | At least a mile long in diameter. |
| Which island of Hawaii is the oldest? | Kauai |
| Is Yellowstone a volcano? | Yes, a caldera. |
| active | describes a volcano that has had numerous activity in the last 10,000 years |
| Where do most volcanoes form? | Along plate boundaries. |
| What kind of base do shield volcanoes have? | A broad, flat one. |
| Where do shield volcanoes form? | Along hot spots and divergent plate boundaries. |
| Which volcano is the most active on Earth? | Kilauea |
| Where are most hot spots found? | The interior of plates. |
| What are the four hot spots you have to know? | Hawaii, Yellowstone, Iceland, and Galapagos |
| What kind of eruptions do cinder cones have? | semi-violent |
| What kind of volcano can cinder cones form near? | shield cones |
| What are cinder cones made up of? | rock fragments and ash |
| Two examples of famous cinder cones. | Paracutin and Sunset Crater |
| What do cinder cones look like? | short and stumpy |
| What are pyroclastic flows basically? | hot searing gas |
| lahar | a hot mud flow caused by the melting of snow or ice on a volcano |
| Do composite volcanoes typically have a gradual or steep slope? | steep |
| Do composite volcanoes pose a risk to humans? | Yes, a great risk. |
| What is an example of a composite volcano? | Mount Vesuvius |
| What kind of volcano did calderas use to be? | strato volcanoes |
Created by:
crosscountrygirl9.24