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Ocean Zones Review

The document reviews ocean zones, detailing their names and characteristics, including the Epipelagic, Mesopelagic, Bathypelagic, Abyssopelagic, and Hadalpelagic zones. It discusses the relationships between salinity, density, temperature, and pressure as one descends into the ocean, and identifies factors affecting marine life distribution. Additionally, it defines key terms related to oceanic organisms and phenomena, including plankton types and light penetration in water.

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18 views2 pages

Ocean Zones Review

The document reviews ocean zones, detailing their names and characteristics, including the Epipelagic, Mesopelagic, Bathypelagic, Abyssopelagic, and Hadalpelagic zones. It discusses the relationships between salinity, density, temperature, and pressure as one descends into the ocean, and identifies factors affecting marine life distribution. Additionally, it defines key terms related to oceanic organisms and phenomena, including plankton types and light penetration in water.

Uploaded by

cqp5bb2kcf
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Ocean Zones Review Name

____________________________________________isabelle gadotti

1. Label the zones of the ocean in the diagram below:


Answer: A: Epipelagic Zone (Sunlight Zone)
B: Mesopelagic Zone (Twilight Zone)
C: Bathypelagic Zone (Midnight Zone)
D: Abyssopelagic Zone (Abyss)
E: Hadalpelagic Zone (Trenches)

2. What is the relationship between the following factors as you travel deeper down in to the ocean?
a. Salinity increases decreases
b. Density increases decreases
c. Temperature increases decreases
d. Pressure increases decreases
3. This organism can swim and should be classified as ____________________.
Answer: Nekton
4. What factors affect the distribution of life in the ocean? ( there are 6)
a.sunlight d.salinity
b.temperature. e.nutrients
cpressure f.ocean currents
5. Most ocean life is found in what zone of the ocean? _______________________________________________
Answer: Epipelagic Zone (Sunlight Zone)
6. Label the parts of the wave:
Answer: Crest: The highest point of a wave.
Trough: The lowest point of a wave.
Wavelength: The distance between two crests or troughs.
Amplitude: The height of the wave from the midpoint to the crest.

Define the following terms:


Answer:
Plankton: Small organisms that drift in the water.
Phytoplankton: Plant-like plankton that photosynthesize.
Zooplankton: Animal-like plankton that feed on phytoplankton.
Diatom: A type of phytoplankton with silica-based cell walls.
Dinoflagellates (red tide): Plankton responsible for harmful algal blooms.
Jellyfish: A type of gelatinous plankton known as medusozoa.
Nekton: Organisms that can swim against currents (e.g., fish).
Benthic: Refers to organisms living on or near the ocean floor.
Oceanic: Related to the open sea beyond the continental shelf.
Pelagic: Refers to organisms living in the water column away from the bottom.
Photic: Refers to the zone where sunlight penetrates and photosynthesis occurs.

7. What colors of light are filtered out first when diving deeper into the ocean?
Answer: Red and orange

8. Sound and light both travel in _________________________.


Answer: Waves
9. Which is more dense? Warm water cold water
Looking at the graph below, answer the following questions

10. At a depth of 300 meters, what is the temperature?


Answer: Approximately 10°C

11. When the temperature is 15oC, what is the average depth?


Answer: the average depth is about 100 meters

12. On the graph to the right, label the thermocline.


Answer: Thermocline is located between 200 and 1000 meters
13. At what depth is the temperature 5oC?
Answer: the depth is approximately 800 meters
14. At a depth of 800 meters, what is the temperature?
Answer: Around 5°C

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