Ocean Physics

1. if a diver fails to decompress properly, they can suffer from a painful, nervous system impairing condition called the ______.
2. sediments from river runoff, the sky and algae all have an affect on the ______of the ocean
3. to calculate the pressure in psi at a certain depth, you must find the pressure in bars first then ___________that number by 14.7.
6. to calculate pressure in bars at a certain depth, you must ____________ the depth by 33.
11. any air filled cavity in an organism such as a __________ ____________ or lungs would be crushed from the extreme pressure in the deep parts of the ocean.
13. the scientist who pioneered the use of sound waves in oceanography
15. the surface area, depth and weight of water above an object all have an effect on_______.
17. human technology that mimics echolocation in animals used to map the ocean floor and locate things underwater
18. a series of clicks and whistles used by aquatic organisms to help create a "mental image" of their environment by processing the rebound of the sounds

1. the ability of a living organism to produce their own light through chemical reactions in the body
4. pressure__________as depth increases
5. a deep sea channel found at about 3300 ft (1000m) where sound travels great distances. It exists due to the drop in temperature and rise in pressure. animals use this to communicate long distances
7. the length and time of a dive are factors that determine how many ______________stops a diver must make when resurfacing
8. if the downward force of gravity is greater than the buoyant force, then an object will_______
9. the deepest known part of the world's oceans
10. _________travels faster in the water than it does in the air
12. measurement of pressure. Equal to one atmosphere (atm)
14. which wavelengths of visible light are ABSORBED first by the ocean?
16. sound waves travel ________as pressure increases