Show:
Materials
Organisms
S.C.U.B.A.
Characteristics
Misc.
100
H20 and several different kinds of salts make up this
What is Ocean Water?
100
tiny living creatures that float near the surface.
What are plankton?
100
The acronym S.C.U.B.A. stands for this.
What is self-contained underwater breathing apparatus?
100
The deeper you go into the ocean, the _______ it is to see.
What is harder?
100
organisms that live in the ocean are divided into 3 categories based on...
What is the depth at which they live?
200
The chemicals sodium and chlorine make up the compound sodium chloride, more commonly known as...
What is table salt?
200
plantlike plankton that rely on sunlight and the dissolved gases in the water for survival
What is phytoplankotn?
200
As scuba divers ascend from the bottom of the ocean, the pressure...
What is decreases?
200
Salt water freezes at a __________ temperature.
What is lower?
200
organisms containing __________ are able to make food through photosynthesis.
What is chlorophyll?
300
The total amount of salt dissolved in water is referred to as it's...
What is salinity?
300
Animal-like plankton that feed on phytoplankton.
What is zooplankton?
300
These type of bubbles form in the diver's bloodstream
What are nitrogen bubbles?
300
As you descend deeper into the ocean, the pressure...
What is increases?
300
all of the creatures that swim, including invertebrates, fish and mammals.
What is nekton?
400
This is the % of ocean water made of dissolved salts.
What is 3.5 % ?
400
Phtyoplankton produce about ________ % of the oxygen on our planet through photosynthesis.
What is 80?
400
When nitrogen bubbles form in a diver's bloodstream, this serious condition may develop causing severe brain damage or even death.
What is the bends?
400
Sunlight may heat surface water in the ocean up to this many degrees.
What is 90?
400
plants/animals that live only on the ocean floor and do not swim.
What are benthos?
500
This is the number of elements that have been discovered in the ocean. (There are only 112 known elements)
What is 80?
500
This is the total number of species of plants and animals in the ocean
What is 200,000?
500
Sometimes divers mix this gas with their oxygen and nitrogen becauses it doesn't dissolve as quickly into the bloodstream.
What is helium?
500
This type of water is more dense.
What is saltwater?
500
The more you take away from me, the larger I become. I am...
What is a hole?