Properties of Ocean Water
What percentage of the earth is covered by water?
70%
What is the top of a wave?
Crest
Which type of tide causes the biggest tidal bulge?
Spring tide
What are free swimming ocean organisms called?
Nekton
Which zone has the most visible light?
Sunlight
What percentage of the earth's water is held in oceans?
97%
What is the bottom of a wave?
Trough
Which type of tide causes the smaller tides?
Neap tides
What are organisms that live on or in the ocean floor?
Benthos
Which zone is the deepest?
Trenches
What percentage of ocean water is pure H20?
96.5 or 97%
What is the distance from the middle of the wave to the top?
Spring
What are the microscopic organisms that live near the surface of the water?
Plankton
What is one of the zones with large temperature variations?
Sunlight OR twilight
Where is higher salinity found?
Hot, dry areas
What is the part of the ocean floor that is a steep decline?
In which type of tide are the sun and moon perpendicular to each other?
Neap tide
What is the basis of all ocean food chains?
Plankton
Which zone comes from the Greek word meaning "bottomless" because it was thought to be the deepest?
Abyss
What is the range of ocean salinity?
3.3-3.7% or 33-37 parts per thousand
What is the part of the ocean floor that is a flat area on the ocean floor?
Abyssal Plains
What kind of tide happens when the moon is a first quarter moon?
How would you classify crabs and oysters?
Benthos
Which zone is where bioluminescence begins?
Twilight