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C and E Volcanoes Answer Key

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#1 An area where magma melts through the crust in the MIDDLE of a plate What is a hot spot?
#2 The molten mixture of rock-forming substances, gases and water deep in the Earth's mantle What is magma?
#3 When ground water heated by a nearby body of magma rises to the surface and collects in a natural pool What is a hot spring?
#4 Where most volcanoes occur.... What are plate boundaries?
#5 Inside a volcano, magma collects in a pocket called What is a magma chamber?
#1 This is a belt of volcanoes around the rim of the pacific ocean What is the ring of fire?
#2 The mid-ocean ridge is an example of this type of boundary What is divergent?
#3 A volcano that may awaken in the future and become active What is a dormant volcano?
#4 When 2 oceanic plates collide, the result may be volcanoes in..... What are Island arcs?
#5 Particles from an eruption ranging from the size of a baseball to the size of a car What are Bombs?
#1 A volcano that is unlikely to erupt is called What is an extinct volcano?
#2 When magma reaches the surface, it is called this What is lava?
#3 This is a weak spot in the crust where magma comes through What is a volcano?
#4 This is the fine rocky particles that erupt from a volcano (they can be as small as a gain of sand) What is Volcanic ash?
#5 A volcano that is erupting or has shown signs that is may erupt in the future What is an active volcano?
#1 These are pebble sized particle that erupt from a volcano What are cinders?
#2 This is where magma forms What is the athenosphere?
#3 This is the energy obtained from the heat beneath the earth. What is geothermal energy?
#4 Lava produced by a quiet eruption that is fast moving and forms rope like coils What is Pahoehoe?
#5 This is a vertical crack in the crust through which magma can rise What is a pipe?
#1 If magma is DARK in color it is LOW in.... What is silica?
#2 This is why liquid magma flows upward through the crust What is because it is LESS dense than the solid material around it
#3 If magma is THICK and LIGHT in color it is HIGH in..... What is silica?
#4 Lava produced by a quiet eruption that is slower moving and forms rough jagged surfaces What is aa?
#5 A volcano erupts quietly if the magma is What is thin and runny?
Final Question
This type of eruption produces ash, cinder and bombs due to the forceful ejection of thick lava What is an Explosive Eruption?