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Volcanoes
Gr.8 - Ch. 8 Volcanoes
| Question | Answer |
|---|---|
| Volcanoes are made of what type of rock? | Igneous |
| What Roman god is the term volcano named after? | Vulcan |
| What type of lava forms underwater? | Pillow lava |
| What is formed when magma forces its way to the surface and break through, creating a hole? | Vent |
| What is a mudslide caused by a volcano? | Lahar |
| What is the correct order of pyroclastic material from smallest to largest? | Ash, Cinder, Bomb |
| What is the most common type of volcano structure? | Stratovolcano |
| According to a young-earth creation, when did most volcanoes form? | The Flood |
| What are the three terms relating to the activity level of a volcano? | Active, Dormant, Extinct |
| What volcano is located in the state of Washington and erupted in 1980? | Mt. Saint Helens |
| What are Batholiths and laccoliths both types of? | Plutons |
| Where is a hydrothermal circuit best observed? | Geyser eruption |
| What is a spring that periodically ejects large quantities of hot water and steam? | Geyser |
| What is a depositional mountain built up by molten rock that has risen to the earth's surface through a vent? | Volcano |
| What is a depression found at the top of a volcanic cone? | Crater |
| What is a vent in the ground through which hot gases escape? | Fumarole |
| What are thick layers of igneous rock that cover large areas of Earth? | Basalts |
| What type of energy comes from inside the earth, particularly in areas where hot springs and geysers exist? | Geothermal |
| What is it called when the temperature of earth increases as you go deeper into the earth? | Geothermal Gradient |
| What is magma that reaches earth's surface? | Lava |
| What is an enlarged depression caused by an explosion or the collapse of a volcanic cone? | Caldera |
| What type of pyroclastic material is described as tiny, angular and glassy fragments? | Ash |
| What type of pyroclastic material is a streamlined mass of ejected lava that solidified in flight? | Bomb |
| What type of volcano emits mostly lava in quiet eruptions? | Shield |
| What type of volcano emits lava and solid debris in alternating quiet and explosive eruptions? | Stratovolcano |
| What type of volcano emits mostly cinders, ash and bombs? | Cinder Cone |
| What activity type is a volcano that shows no record of eruption and no seismic activity? | Extinct |
| What is another name for a pyroclastic flow that contains both gases and hot solid particles? | Glowing avalanche |
| What is another name for the Ring of Fire? | Circum-Pacific Volcano Belt |
| Are sills and dikes examples of intrusive or extrusive volcanism? | Intrustive |
| What is geyser water heated by? | Magma |
| What volcano erupted effecting weather patterns for more than a year, often called A Year Without Summer? | Mt. Tambora |
| What is the largest flood basalt zone in North America called? | Canadian Shield |
| What type of magma contains the least amount of Silica and has lava that flows runny? | Basaltic |
| What type of magma has the most amount of silica and is highly viscous? | Rhyolitic |
| What is a layer of lava that has cooled and solidified on the ground? | Tephra |
Created by:
kpmueller
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