Warm Up amp Spiral November 4 How are surface currents created How are deep ocean currents created What are 2 factors that affect the density of water What is upwelling Objectioves 8E1112 ID: 732210
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Slide1
Ocean Ecosystems:
Intertidal, Neritic, and Deep Ocean ZonesSlide2
Warm Up & Spiral
November 4
How are surface currents created?
How are deep ocean currents created?
What are 2 factors that affect the density of water?
What is upwelling?
Objectioves
: 8.E.1.1/1.2
-TSWU that the ocean is divided up into smaller ecosystems including coral reefs, kelp forests, deep ocean,
neritic
zone, and surface zone.
-TSWU the types of organisms that live in each marine ecosystem.
Essential Question:
-What types of organisms can be found in each marine ecosystem?
-What types of ecosystems can be found in the ocean? Slide3
Warm Up November 4
Describe what happens in the ocean during upwelling.
What causes upwelling?
Objectives: 8.E.1.2
-TSWU the hydrosphere including the differences and similarities between the intertidal,
neritic
, and deep ocean zones.
Essential Question:
-What is the difference between the intertidal,
neritic
, and deep ocean zones? Slide4
What is Upwelling?
Winds blowing across the ocean’s surface pushes water away.
Cold water rises from deep in the ocean.
The cold water brings nutrients from the deep ocean to the surface.
Why is upwelling good
for organisms at the
oceans surface? Slide5
Once water leaves the estuary,
it heads out to the oceanSlide6
Oceans make up about 70% of our Earth surface.Slide7
As salinity increases,
water’s density INCREASES.Slide8
We should already know which is more dense, solid water or liquid water.
Which is more dense solid water or liquid water????Slide9
But is cold water more or less dense than warm water?Slide10
Is cold water more dense than warm water?
While ice is
LESS
dense than liquid water, cold water is
MORE
dense than warm water.Slide11
Answer ANALYSIS QUESTIONS:
Two (2) ways to change the density of ocean water are: ________________ & _______________
The more salt dissolved in water, the ________ dense this ocean water is.
The colder liquid water gets, the __________ dense the ocean gets.
What moves
surface
currents: __________________
What moves
deep water
currents: changes in water __________Slide12
Answer ANALYSIS QUESTIONS:
Two (2) ways to change the density of ocean water are: ________________ & _______________
The more salt dissolved in water, the ________ dense this ocean water is.
The colder liquid water gets, the __________ dense the ocean gets.
What moves
surface
currents: __________________
What moves
deep water
currents: changes in water __________Slide13
All our oceans are connected by surface & deep water currents.
Surface & deep currents move all Earth’s salt water aroundSlide14
All our oceans are connected by surface & deep water currents.
Surface & deep currents move all Earth’s salt water aroundSlide15
Deep water currents are driven by changes in ocean water density.
By changes in salinity and temperature
make some ocean water sink or rise creating deep ocean currents!Slide16
Deep water currents are driven by changes in ocean water density.
By changes in salinity and temperature
make some ocean water sink or rise creating deep ocean currents!Slide17
Without currents
moving salt water around our planet, our daily temperatures would be much more EXTREME.Slide18
Surface & deep currents
moderates
temperatures across the globe!
Why?
Because salt water doesn’t FREEZE or EVAPORATE as fast as fresh water!
No big swingsSlide19
Why are oceans SALTY?
Eroding land
Volcanic emissions
Atmospheric
deposition
Biological & chemical reactions at the sea floorSlide20
Why are oceans SALTY?
Eroding land
Volcanic emissions
Atmospheric
deposition
Biological & chemical reactions at the sea floorSlide21
Once water leaves the estuary,
it heads out to the oceanSlide22
How many ocean ecosystems are there?Slide23
Our ocean has
many
ecosystems:
1.
2.
3.
4.
5.
6.Slide24
Our ocean has
many
ecosystems:
1. Intertidal – estuaries, shore
2.
3.Slide25
Our ocean has
many
ecosystems:
1. Intertidal – estuaries, shore
2. Coral Reefs
3.Slide26
Our ocean has
many
ecosystems:
1. Intertidal – estuaries, shore
2. Coral Reefs
3. Kelp ForestsSlide27
Our ocean has
many
ecosystems:
1. Intertidal – estuaries, shore
2. Coral Reefs
3. Kelp Forests
4. Deep Ocean Slide28
Our ocean has
many
ecosystems:
1. Intertidal – estuaries, shore
2. Coral Reefs
3. Kelp Forests
4. Deep Ocean
5. Surface Zone – this is the sunlit zoneSlide29
Our ocean has 3 ecosystems:
1. Intertidal – estuaries, shore
2. Coral Reefs
3. Kelp Forests
4. Deep Ocean
5. Surface Zone
6. Neritic Zone Slide30
Our ocean has
many
ecosystems:
1. Intertidal – estuaries, shore
2. Coral Reefs
3. Kelp Forests
4. Deep Ocean
5. Surface Zone
6. Neritic Zone
7. Ocean Floor
Slide31
Our ocean has
many
ecosystems:
WE WILL BE LOOKING AT EACH OF THESE ECOSYSTEMS
OVER THE NEXT FEW DAYS, BUT 1
ST
LETS LOOK AT SOME
SAMPLES OF LIFE…Slide32
Our ocean has
many
ecosystems
but
:
The ocean has 3 main ecosystemsSlide33
Our ocean has
many
ecosystems:
3 Main zones in the ocean include:
1. SHORELINE = INTERTIDAL ZONE
2. CONTINENTAL SHELF = NERITIC ZONE
3. DEEP ZONE = BENTHIC ZONESlide34
Our ocean has
many
ecosystems:
3 Main zones in the ocean include:
Intertidal Zone
1. SHORELINE = INTERTIDAL ZONE
Located along the shore
Towards the mangrove forests and salt marshes but not that far.
Located at the area between the high tide and low tide mark.
Slide35
Our ocean has
many
ecosystems:
3 Main zones in the ocean include:
Intertidal Zone
2. CONTINENTAL SHELF = NERITIC ZONE
Located along the continental shelf
Kelp forests and coral reefs are found here.
Sunlight does penetrate this zone.
Photosynthesis occurs here. Slide36
Our ocean has
many
ecosystems:
3 Main zones in the ocean include:
Intertidal Zone
3. DEEP ZONE = BENTHIC ZONE
Benthic vents are located here at the bottom of the ocean.
Photosynthesis does not occur here because NO sunlight can reach this far.
Organisms use a process known as chemosynthesis to survive at this depth.
Tube worms feed on sulfur eating bacteria here. Slide37
Ocean Life Lab
Work in your pairsSlide38
Do the following table in your notes:
Organism
Draw an illustration of the organism.
Describe the organism.
Identify the organism.
Which ocean zone does the organism live in?
Write two interesting fact about the organism.
1
2
3
4
5
6
7Slide39
Each pair will get a bag of ocean life and you must classify at least 5.
FILL IN YOUR TABLE COMPLETELY!Slide40
Each pair will get a bag of ocean life and you must classify at least 5.
FILL IN YOUR TABLE COMPLETELY!
WHEN DONE, PICK YOUR MOST INTERESTING SPECIMEN AND PRESENT IT TO CLASS!Slide41
Clean-up….
Place your shells back onto the Zip lock bag and place in the bin.
Place the Shell guide back in the bin
Place your bins on top of your textbook. Slide42
Our ocean has 3
main
ecosystems:
Intertidal zone (ALSO KNOWN AS THE Littoral zone…shoreline zone)
Neritic zone (ALSO KNOWN AS THE continental shelf)
Deep ocean (ALSO KNOWN AS THE benthic zone)Slide43
Our ocean has 3
main
ecosystems:
Intertidal (aka…littoral zone…shore line zone)
Neritic zone (aka…continental shelf)
Deep ocean (aka…benthic zone)Slide44
Our ocean has 3
main
ecosystems:
Intertidal zone(aka…littoral zone…shoreline zone)
Neritic zone (aka…continental shelf)
Deep ocean (aka…benthic zone)
Benthic Vents