Ocean Floor Features
The shallow underwater edge of a continent is called the ___
What is the Continental Shelf?
This region is the Ocean zone with sunlight and most marine life.
What is the photic zone?
This theory explains the movement of Earth’s lithospheric plates.
What is plate tectonics?
This is a large movement of ocean water driven by wind or temperature differences.
What is an ocean current?
This technology uses sound waves to detect and map objects underwater.
What is sonar?
The steep drop after the shelf is called the ___
What is the Continental slope?
This region is the Zone with no sunlight.
What is the aphotic zone?
This is the zone where one tectonic plate sinks beneath another.
What is a subduction zone?
This type of current flows near the ocean surface and is driven by wind.
What is a surface current?
These are space-based tools used to observe oceans from above Earth.
What are satellites?
This region is the flattest deep-sea region.
What is the Abyssal plain?
This is the area of the ocean where pressure increases greatly with depth
What is the deep sea zone?
This is the process that creates new oceanic crust at mid-ocean ridges.
What is seafloor spreading?
This is the global system of deep ocean circulation driven by temperature and salinity differences.
What is thermohaline circulation?
This is a small vehicle designed to explore deep parts of the ocean.
What is a submersible?
These are underwater mountain chains where new crust forms.
What are Mid-ocean ridges?
This is the adaptation used by deep-sea animals to produce light.
What is Bioluminescence?
This type of boundary forms mid-ocean ridges as plates move apart.
What is a divergent boundary?
This climate pattern in the Pacific Ocean affects global weather systems.
What is El Niño?
This technology uses multiple sound beams to create detailed maps of the seafloor.
What is multibeam sonar?
What is the deepest point of the deepest trench in the world called?
What is Challenger Deep?
This fish has a bioluminescent lure located on its head.
What is an anglerfish?
This type of boundary creates deep ocean trenches and volcanic island arcs through subduction.
What is a convergent boundary?
This is how oceans influence Earth’s temperature by absorbing and redistributing heat.
What is climate regulation? (similar answers acceptable)
This is the percentage of the Earth's oceans that are mapped. (within 3% under or over is fine)
~25% (but can accept ~22-28)