Volcanoes and Rocks Test
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Your answer
Mass of rock formed when a large body of magma cools beneath the surface *
5 points
Rocks formed when lava cools *
5 points
Subduction zones along the ____________ create violent volcanoes like Mt. St. Helens. *
5 points
Most volcanoes are found at *
5 points
If a volcano has thick magma it will *
5 points
Floods of thin, runny lava covering large flat areas are known as *
5 points
When a volcano empties its magma chamber it collapses in on itself creating a/an *
5 points
What forces change other rocks into metamorphic rocks? *
5 points
Volcano that is erupting or has shown signs of erupting *
5 points
Tall, cone shaped mountain in which layers of lava and ash alternate *
5 points
Volcanic activity over long periods of time is mostly *
5 points
Most volcanic activity occurs at *
5 points
Some day in the future, there will be volcanoes on the east coast of the United States. *
5 points
The people of Pompeii were well prepared for the eruption because they knew it was going to happen. *
5 points
In the diagram, letter D represents the: *
5 points
Captionless Image
Volcanoes erupt because of pressure caused by gas dissolved in magma. *
5 points
Which type of volcano has quiet eruptions? *
5 points
People trap water heated by magma and convert it to electricity *
5 points
Volcanoes are monitored in all of the following ways EXCEPT *
5 points
Rocks are combinations of ________ which are made of crystals. *
5 points
Which of the following does NOT contribute to the weathering of rocks? *
5 points
Minerals have chemical formulas. *
5 points
Basalt is a lava rock that cools on the surface. Therefore it is *
5 points
Composite volcanoes have all of the following EXCEPT *
5 points
Soil is formed when hardened lava melts and becomes magma again. *
5 points
Sills run parallel to the rock layers. *
5 points
The three rock types are igneous, sedimentary, and metamorphic. The choices below are processes that lead to each type of rock. Which answer best matches the order of rock types above? *
5 points
Metamorphic rocks are made from bits of other rocks. *
5 points
Rock Cycle
If a sedimentary rock goes through heat and pressure it becomes a/an *
5 points
If a metamorphic rock melts, it becomes a/an *
5 points
In order for a sedimentary rock to become another sedimentary rock, it would have to *
5 points
Paricutin Volcano
Video Question:Mexico has a national center that keeps accurate records of earth movements. *
5 points
Video Question: The village of San Juan was safe because it was five miles away from the newly born volcano. *
5 points
Video Question: Fertile farmland was buried by 600 feet of lava and ash in a few days. *
5 points
Video Question: The photographers go to the base of the volcano at the risk of their own lives to film it because they are afraid that *
5 points
Video Question: The very last shots were taken at night. At the shot 30:02--30:13 you can see a shadow image of a _________ in the foreground. *
5 points
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