Download - Tuesday February 19, 2013
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TuesdayFebruary 19, 2013
(Ocean Life)
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Compare Points A and B in terms of the following characteristics:
The Launch PadTuesday, 2/19/13
surface temp
depth temp
surface salinity
depth salinity
surface density
depth density
AB
A higher
same
B higher
varies
A lower
same
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Announcements
Happy Chocolate Mint Day!
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AnnouncementsI will be available after
school today until 4:45.
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Assignment Currently Open
Summative or
Formative?Date Issued Date Due Date Into
GradeSpeedFinal Day
Quiz 18 S3 2/8 2/8 2/11 2/25WS – Ocean
Temperature and Density
F15 2/13 2/15 ? FRIDAY
Quiz 19 S4 2/15 2/15 ? 3/1
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Recent Events in ScienceRussia Meteor Blast Is Biggest in 100 Years
Read All About It!www.space.com/19822-russian-fireball-biggest-explosion-century.html
The dramatic fireball that exploded over Russia on Friday, Feb. 15 was apparently
the biggest such blast in more than a century, scientists say.
The object that caused the Russian fireball, which damaged hundreds of buildings and
wounded perhaps 1,000 people in the Chelyabinsk region, was originally probably about 50 feet (15 meters) in diameter and
weighed roughly 7,000 tons, said Peter Brown, director of the Center for Planetary Science and Exploration at the University
of Western Ontario in Canada.From multiple sensors using multiple
technologies, a best initial estimate of the total energy of the event is
about 300 kilotons of TNT-equivalent, Brown said, though he stressed that the number could change as scientists learn
more.
www.youtube.com/watch?v=ANm_4k7OLDk
www.youtube.com/watch?v=dBvotWfR3j4
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Ocean LifeThe marine
environment is inhabited by a wide
variety of organisms. Most of these
organisms live within the sunlit surface
waters.Many are
photosynthetic.
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Ocean LifeClassification of
marine organisms Plankton (floaters) include
all marine organisms – algae (phytoplankton), animals (zooplankton), and bacteria – that drift
with ocean currents.Most of Earth’s biomass
consists of plankton adrift in the ocean.
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Phytoplankton - Algae
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Zooplankton - Animals
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Photosynthetic Bacteria
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Ocean LifeClassification of
marine organisms Nekton (swimmers) include all animals capable of moving
independently of the ocean currents, by swimming or other
means of propulsion.
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Nekton – Great Reef Shark
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Nekton - Squid
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Nekton – Blue Tang
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Nekton – Moray Eel
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Ocean LifeClassification of
marine organisms Benthos (bottom
dwellers) describe organisms living on or in
the ocean bottom.A great number of
species exist on the shallow coastal floor, but
most live in perpetual darkness in deep water.
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Benthos – Sea Star
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Benthos – Yellow Tube Sponge
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Benthos – Green Sea Urchin
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Benthos – Coral Crab
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WorksheetOcean Life
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Video
DisneyNatureOceans(Part 5)