| A | B |
|---|
| continental shift | gradually sloping end of a continent that extends out under the ocean |
| continental slope | The descent from the continental shelf to the ocean bottom |
| abyssal plain | flat almost level area of ocean basin |
| mid-ocean ridge | underwater mountain chain |
| oceanic trench | deep ocean trough |
| seamount | volcano that does not rise above sea level |
| island | mountain that rises above sea level |
| benthos | organisms living near or in sea beds |
| floaters | survive at the surface wonderes of the current |
| nekton | powerful swimmers vertebrates |
| aquatic food web | shares feeding connections in water ecosystem |
| terrestial food web | shows feeding connections in a land ecosystem |
| producers | they make their own food from the suns energy and water |
| consumers | rely on other organisms for food hunting animals |
| carnivore | eats meat |
| herbivore | eats plants |
| omnivore | eats both plants and animals |
| sonar | stands for sound navigation ranging used to measure ocean depth by sending sound to bounce off the ocean floor |
| scuba | stands for self contained breathing apparatus this device allows divers to breathe underwater for long periods of time |
| submersibel | small submarine used to explore the ocean depth |
| rov | remote operated vehicle unmaned submersible tied to a mother ship and operated by pilots using a joy stick |
| salinity | the measure of how much salt is in the water |
