Water Properties
What is the correct formula for water?
H20
What two main factors affect the density of seawater?
Temperature and salinity
What are dissolved ions?
Atoms or groups of atoms that have an electrical charge.
What process do plants use to take in carbon dioxide?
Photosynthesis
How many layers of the ocean exist?
5 layers
What type of bond holds hydrogen and oxygen together within a water molecule?
Covalent bonds
What is salinity?
the total concentration of all dissolved salts in a body of water
The chemical properties of seawater
distinguish it from ________ ______.
Freshwater Habitats
What gas causes ocean acidification?
Carbon dioxide
The first layer of the ocean, also known as the sunlight zone.
Epipelagic Zone
What property allows water molecules to stick to each other?
Cohesion
How does increasing salinity affect seawater density?
It increases density
What is the main salt found in seawater?
Sodium chloride
What happens to ocean pH when acidity increases?
The pH decreases
Which zone has the largest environment on earth?
Abyssopelagic Zone
Why does ice float on liquid water?
Ice is less dense
Why is cold seawater generally denser than warm seawater?
Cold water contracts, so its molecules are packed more closely together.
Why can seawater conduct electricity?
Dissolved ions carry electrical charges.
What gas do oceans absorb from the atmosphere?
Carbon dioxide
What kind of light is produced in the Bathypelagic Zone?
Only Bioluminescence
How does water's high specific heat help marine organisms survive temperature changes?
Water absorbs or releases large amounts of heat with only a small temperature change, keeping ocean temperatures much the same.
What is the relationship between temperature and seawater density?
As temperature decreases, seawater density generally increases.
How do salts get into the ocean?
Weathering of rocks and underwater volcanic activity release dissolved materials into the ocean.
How does ocean acidification affect animals with shells?
It makes it harder for them to build their shells.
Which zone houses whales, shrimps, and octopuses?
Mesopelagic Zone