key terms
the outer layer of earth
What is the lithosphere?
continuous underwater mountain range
What are mid-ocean ridges?
What evidence supports that land on earth was one land mass
what is the coasts fit like puzzle pieces?
What type of reaction is happening so that animals living near the hydrothermal vents can make food as a primary producer?
what is chemosynthesis?
the three types of plate boundaries?
What is convergent, divergent and transform?
Gently sloping region surrounding the continents, over which the sea is relatively shallow
what is the continental shelf?
As the seafloor spreads away from the ridge, cracks and fissures form, letting cold water seep in them, then the water is superheated by underlying magma under the ocean floor, forming?
what is a hydrothermal vent?
What was the name of the big continent that was all of the continents connected
what is pangea?
hydrothemal vents are found along?
what is mid-ocean ridges?
At what boundary does the denser plate slide under the less dence one
what is a convergent boundary?
A region of molten rock within the interior of the Earth, between the core and the crust
what is the mantle?
Located in the Western Pacific Ocean, the deepest trench on Earth
What is the Mariana Trench?
a theory supporting the possibility that continents can move over Earth's surface
what is continental drift?
why does water that is superheated in the vents not boil?
what is too much pressure?
volcanos are fromed at what type of plate boundary?
what is a divergent boundary?
flat areas of the ocean floor Found between depths of 3000m and 6000m below sea level
what is the abbysal plane?
Deep valleys cut into the side of the continental slope
What is a submarine canyon?
The process where large sections (plates) of the Earth's crust are in constant movement over the fluid mantle, causing earthquakes and volcanoes at the borders between the plates
what are plate tectonics?
what animal do the chemosynthetic bacteria live in?
what are tubeworms?
mid-ocean ridges are found along what plate boundary?
What is a divergent boundary?
The movement of fluids or air based on density differences caused by differing temperature
What are convention currents?
a mountain or hill with a crater or vent through which lava, rock fragments, and hot vapour and gases are being forced from the Earth's crust
what is a volcano?
the symetry of what is a piece of evidence for they thoery of plate tectonics
what is magnitic stripes along mid-ocean ridges?
what animal outcompetes Tevnia and replaces it at the hydrothermal vents?
what is Riftia?
Which country have mid-ocean ridges risen above sea levels
what is Iceland?