Plates
Hot Spots
Hydrothermal Vents
Converging Boundaries
Volcanoes
100
The plate that is the most dense.
What are oceanic plates?
100
What is a hot spot?
What is a specific area where magma is super heated from deep within the mantle melts through the crust above it? Ex: Hawaii.
100
Another name for a hydrothermal vent is ______.
What is underwater geyser, black smoker or white smoker?
100
True or False: The recycling of crust occurs at converging boundaries.
True.
100
How does an underwater volcano begin? What happens when it starts?
Erupted lava and volcanic debris pile up on the ocean floor until the volcano rises above sea level and forms a volcanic island.
200
What is the name of the zone where the oceanic plate sinks?
What is subduction zone?
200
How are hydrothermal vents formed?
What is by plates diverging and water flowing deep into the rift. Under this tremendous pressure, minerals from the rocks dissolve into the water. It becomes super heated and less dense so it rises back up. As it rises back up, the minerals become solid again and form chimneys on the sea floor.
200
True or False: Tilt of the Earth changes significantly throughout the history of the Earth.
What is False.
200
Multiple Choice: Volcanoes that are strung out in chains are called: A) Island Chains B) Island Arcs C) Volcano Arcs D) Volcano Chains
What is Island Arcs?
300
Oceanic crust is made of ______. Continental crust is made of _____.
What are Basalt and Granite.
300
What is the basis of life around hydrothermal vents?
What is chemosynthesis?
300
What forms when oceanic plates collide with continental plates?
What are a string volcanoes on land and trenches in the ocean?
400
In what motion do plates move on a transform boundary?
What is scraping past each other?
400
Why were scientists surprised to find life in spreading centers in the Galapagos in 1977?
What is conditions included poisonous chemicals and super heated water?
500
The _____ trench is 2,146 meters deeper than Mt. Everest is tall.
What is the Mariana Trench?
500
Look at the picture provided. The direction of the plate motion is ______.
What is north-east?
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