Font size
WorksheetsOcean Properties
Total questions: 10
Worksheet time: 5mins
What percent of the water on Earth is salt water?
3%
1%
50%
97%
Where does the salt in the ocean come from? There are TWO correct answers.
Magma from seafloor spreading
Sediments from weathering and erosion
Humans add it
Animals add it
Which of the following would DECREASE the salinity of water?
Increased chemical weathering of rocks on land
Water freezing, leaving behind salt
Rain falling into the ocean
Water evaporating, leaving behind salt
Why are there warmer ocean temperatures by the equator?
Because it gets more direct sunlight
Because it gets less direct sunlight
Because it faces the sun for fewer hours in a day
Because the equator reflects more sunlight
Which is more dense: cold water or warm water?
Cold
Warm
There is no change in density with temperature
You can't tell with the information given
True or false: the ocean water at the bottom of the ocean is less dense than the ocean water at the surface of the ocean.
True
False
What is the thermocline?
A horizontal space in water where temperature changes drastically
A vertical space in water where temperature changes drastically
A horizontal space in water where salinity changes drastically
A vertical space in water where salinity changes drastically
This zone of the ocean gets the most sunlight, so it has the most plants that need to undergo photosynthesis.
Surface Zone
Transition Zone
Deep Zone
This zone of the ocean is the largest zone by volume (has the biggest percent of ocean water)
Surface Zone
Transition Zone
Deep Zone
This zone of the ocean contains the Thermocline.
Surface Zone
Transition Zone
Deep Zone
