Download 30.Ocean Properties - stoffregen

30.Ocean Properties
EQ: What are the different aquatic ecosystems? Why are
they so important to life on Earth?
LT: I can identify the three life zones and the three layers
within the ocean.
LTask: I will identify key properties of Earth’s oceans.
I will research the Ocean’s Zones and Layers using my
iPad.
I will complete a “KeyQuest” to learn more about how
organisms are adapted to life in the ocean.
Welcome! Warm Up 3/12/14
1. Explain why the
absence of the Giant
Kelp will lead to the
disappearance of the
Sea Otter
2. Explain why the
absence the sea otter
will lead to the
disappearance of the
Giant Kelp.
Table
of
Contents
Title
Water Properties Webquest
Water Cycle Brainpop
Water Cycle Vocabulary
Water on Earth Notes
River Basin Notes
River Basin Vocab
River Basin Scavenger Hunt
Estuaries Notes
Wetlands
Diagram River Basin to Estuary
Wetlands and Estuaries Vocab
Estuary Ecosystems
Ocean Food Webs
Ocean Properties
1 Assignment #
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Ocean Properties
& other cool stuff
about the oceans!
21
Salinity
• Salinity - the total
amount of salt
material dissolved
in water
• Comes from:
– Eroding Land
– Reactions at sea
floor
– Volcanic Emissions
Desalination
• Desalination is the
•
•
process of removing
salt from water
It’s typically done by
boiling the water, and
trapping and cooling
the water vapor so
that it condenses as
fresh water
Expensive – it uses a
lot of fossil fuels to
heat the sea water
Gases in the Ocean
• Gases in ocean similar to that of the
atmosphere
– CO2, N2, and O2
• Oxygen and Carbon Dioxide
exchange
– Photosynthesis = Make oxygen
– Respiration = Make carbon dioxide
Temperature Changes
• Temperature changes in 2 directions:
– Latitude (North vs. South) – Surface waters
near equator > surface waters at poles
– Depth – Deeper waters = colder (less sun!)
• Thermocline – Layer of ocean water with
a sudden change in temperature in
relation to depth.
Hydrothermal Vents
• Seawater moves into
the ocean from cracks
in Earth’s crust.
• Very high
temperatures
(sometimes 100°C!)
• Unique ocean life!
Upwelling
• The movement of cold water upward
from the deep ocean
• This brings up tiny organisms (food),
minerals, and nutrients
• Because of all this food, zones of
upwelling are usually home to huge
schools of fish
pH
• The measurement of
how acidic or basic a
solution is.
• Acidic = Low pH
• Neutral = pH of 7
• Basic = High pH
Changing pH
• Increased
atmosphere CO2 =
lowers the pH of
ocean
• This is known as
Ocean acidification
• Animals dying! = 
Ocean Zones & Layers
KeyQuest
• Use SAFARI, go to
www.stoffregen.wikispaces.com
• Click on 30.Ocean Zones & Layers.key
• Use the Keynote to answer the questions
on your KeyQuest Handout
Popplet:
Create an Ocean Food Web
• You need 3 plankton, 3 nekton, and 3
benthos in your food web.
• You also need at least one TERRESTRIAL
(a.k.a. land) organism that eats something
in your Ocean food web.
• Remember, this is due on FRIDAY!