(SOund NAvigation and Ranging) When boats send sound waves underwater and measure how long it takes for the wave to bounce back and return. They use this to tell how deep the ocean floor is.

a gently sloping, shallow area of the ocean floor that extends outward from the edge of a cotinent

the steep edge of the continental shelf, it marks the edge of a continent

a broad, flat area covered with mud and silt

a continuous range of underwater mountains that winds around Earth

pieces of Earth's rust along with the upper mantle, there are 14 plates on Earth

When magma from the core seeps up through the Mid-Ocean Ridge, cools and hardens into rock. The old rock falls into trenches, so the worlds doesn't keep expanding. The ocean floor expands, though, in a process called seafloor spreading.

the area between the highest high-tide mark and the lowest low-tide mark on the shore

the area from the edge of the intertidal zone to the start the of continental slope

the continental slope all the way to the other side of the ocean

an ocean organisms category made up of tiny algae and animals that are carried by waves and currents, including diatoms and copepods

an ocean organisms category made up of free-swimming animals that can move throughout the water column, including most fishes and marine mammals such as whales, dolphins, or seals.

an ocean organisms category made up of of organisms that inhabit the ocean floor like crabs and lobsters

all of the feeding relationships that exist in a habitat

coastal inlets or bays where fresh water from bays mixes with salty water from oceans

a ring-shaped reef surrounding a shallow lagoon

the production of light by living things

where hot water rises out of cracks in the ocean floor

the farming of saltwater and freshwater organisms

black lumps of concentrated metal around pieces of shell

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Ocean Zones

Term	Definition
sonar	(SOund NAvigation and Ranging) When boats send sound waves underwater and measure how long it takes for the wave to bounce back and return. They use this to tell how deep the ocean floor is.
continental shelf	a gently sloping, shallow area of the ocean floor that extends outward from the edge of a cotinent
continental slope	the steep edge of the continental shelf, it marks the edge of a continent
abyssal plain	a broad, flat area covered with mud and silt
mid-ocean ridge	a continuous range of underwater mountains that winds around Earth
trench	a canyon in the ocean floor
plate	pieces of Earth's rust along with the upper mantle, there are 14 plates on Earth
seafloor spreading	When magma from the core seeps up through the Mid-Ocean Ridge, cools and hardens into rock. The old rock falls into trenches, so the worlds doesn't keep expanding. The ocean floor expands, though, in a process called seafloor spreading.
intertidal zone	the area between the highest high-tide mark and the lowest low-tide mark on the shore
neritic zone	the area from the edge of the intertidal zone to the start the of continental slope
open-ocean zone	the continental slope all the way to the other side of the ocean
plankton	an ocean organisms category made up of tiny algae and animals that are carried by waves and currents, including diatoms and copepods
nekton	an ocean organisms category made up of free-swimming animals that can move throughout the water column, including most fishes and marine mammals such as whales, dolphins, or seals.
benthos	an ocean organisms category made up of of organisms that inhabit the ocean floor like crabs and lobsters
food web	all of the feeding relationships that exist in a habitat
estuary	coastal inlets or bays where fresh water from bays mixes with salty water from oceans
atoll	a ring-shaped reef surrounding a shallow lagoon
bioluminescence	the production of light by living things
hydrothermal vent	where hot water rises out of cracks in the ocean floor
aquaculture	the farming of saltwater and freshwater organisms
nodule	black lumps of concentrated metal around pieces of shell

Created by: bpalumbi

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