“VOLCANOES”STUDY QUIZ

#1

◦The early Hawaiians told stories about volcanoes and Vulcan, their god of fire.◦True or False

Answer

◦False. The Romans god of fire was Vulcan.

#2

◦What are the top layers of solid rock on the earth’s surface called?

Answer

◦The top layers are called crust. Pg 85

#3

◦When does magma become lava?

Answer

◦Magma becomes lava when it pours out onto the surface. Pg. 85

#4

◦Which mountain created the most destructive volcanic eruption in the history of the United States?

Answer

◦Mount St. Helens

#5

◦Where do almost all of the volcanoes in the world erupt?◦On the Hawaiian Island of Mauna Loa◦Along the coast of Iceland◦Where the earth’s plates meet◦None of the above

Answer

◦Where the earth’s plates meet

#6

◦What was left in place of the top of Mount St. Helens after the volcanic eruption of 1980?

Answer

◦After the volcanic eruption a crater was left at the top of Mount St. Helens. Pg. 88

#7

◦What are the names of the two kinds of lava in Hawaiian volcanic eruptions?◦Oee and palla◦Lavee and vallacalla◦Aa and pahoehoe◦None of the above

Answer

◦Aa and pahoehoe

#8

◦List two of the four types of volcanoes. (extra credit if you can name all four)

Answer

◦Shield, Cinder Cone, Composite (strato-volcano) dome. Pgs. 94,95,96

#9

◦What are volcanoes that no longer erupt called?

Answer

◦They are called extinct volcanoes. Pg. 97

#10

◦What do volcanoes create?◦New islands◦New soil◦New mountains◦Both a and c are correct.

Answer

◦Both a and c are correct. Volcanoes create new islands and new mountains.

#11

Define molten:Charred bits of rock; ashMade liquid by heat

Answer

◦Molten◦Made liquid by heat

#12

◦Define lava:◦A bowl shaped depression◦Hot melted rock that flows from a volcano

Answer

◦Lava:◦Hot melted rock that flows from a volcano

#13

◦Define crater:◦A volcanic explosion or large flow of lava◦A bowl shaped depression

Answer

◦Crater:◦A bowl shaped depression

#14

◦Define cinders:◦Made liquid by heat◦Charred bits of rock; ash

Answer

◦Cinders:◦Charred bits of rock; ash

#15

◦Define eruption:◦Hot melted rock underneath the earth’s surface◦A volcanic explosion or large flow of lava

Answer

◦Eruption:◦A volcanic explosion or large flow of lava

#16

◦Define magma:◦Hot melted rock underneath the earth’s surface◦Made liquid by heat

Answer

◦Magma: ◦Hot melted rock underneath the earth’s surface

#17

◦Define summit

Answer◦ The top of a mountain