68
Name:
Period:
STUDENT WORKSHEET
Lesson 4b: Phytoplankton in the Water Column
Note: This lesson was created by Phytopia and is available at
http://www.bigelow.org/phytopia/ideas.html
.
It has been reformatted and slightly modified by C‐MORE for this science kit.
Directions:
1.
Click on the menu at the bottom of the screen, and select “Phyto Factors.”
2.
You will view an introductory movie. While watching this movie, take notes on the important environmental
conditions that affect phytoplankton growth. We’ve helped you with your note‐taking by providing the guide
below. As you take notes below, you can pause, rewind, or forward the movie with the control buttons below
the movie screen.
Notes:
1.
Environmental Factors that Affect Phytoplankton Growth and Distribution
a.
Sunlight
b.
Wind‐driven ____________
(noun) which can impact:
i.
Temperature
ii.
___________ (noun)
2.
Phytoplankton Survival Requirements
a.
Carbon
–
Choose one: abundant
OR can be limited
b.
__________ –
Choose one: abundant
OR can be limited
c.
_________ _ –
Choose one: abundant
OR can be limited
3.
Sunlight
a.
Define “photic zone”
___________________________________________________________________________
___________________________________________________________________________
b.
Depth of photic zone is determined by
___________________________________________________________________________ and
___________________________________________________________________________
c.
Tropical oceans appear very blue because there aren’t a lot of __________________
(noun) in the water
and the photic zone is __________ (adjective).
d.
More productive waters have more __________________ (noun) which scatter and absorb the sunlight,
making the photic zone __________
(adjective).
e.
Ocean colors during a bloom can be ___________, ____________, ____________, or ____________.
4.
Nutrients
a.
Nutrients accumulate in deeper waters.
b.
Nutrients are brought up to the photic zone by ____________
(noun), ______________
(noun), and
___________ (noun).
5.
Blooms
a.
Adequate sunlight and nutrients can cause blooms of ___________________________ (noun).
b.
Blooms of phytoplankton will deplete ____________ (noun) in the photic zone.
c.
Continued heating by the sun causes the upper ocean to become _________________ (adjective).
d.
Define “thermocline”
___________________________________________________________________________
___________________________________________________________________________
e.
________________ (noun) can swim through the thermocline so they can travel between the sunlit
surface waters and the deeper nutrient‐rich waters.
f.
________________
(noun) feed on phytoplankton.
g.
All organisms eventually die and decompose, and contribute to the pool of _____________
(noun) in the
ocean.
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TEACHER ANSWER KEY to STUDENT WORKSHEET
Lesson 4b: Phytoplankton in the Water Column
Note: This lesson was created by Phytopia and is available at
http://www.bigelow.org/phytopia/ideas.html
.
It has been reformatted and slightly modified by C‐MORE for this science kit.
Directions:
1.
Click on the menu at the bottom of the screen, and select “Phyto Factors.”
2.
You will view an introductory movie. While watching this movie, take notes on the important environmental
conditions that affect phytoplankton growth. We’ve helped you with your note‐taking by providing the guide
below. As you take notes below, you can pause, rewind, or forward the movie with the control buttons below
the movie screen.
Notes:
1.
Environmental Factors that Affect Phytoplankton Growth and Distribution
a.
Sunlight
b.
Wind‐driven ____________
(noun) which can impact:
i.
Temperature
ii.
___________ (noun)
2.
Phytoplankton Survival Requirements
a.
Carbon
–
Choose one: abundant
OR can be limited
b.
__________ –
Choose one: abundant
OR can be limited
c.
_________ _ –
Choose one: abundant
OR can be limited
3.
Sunlight
a.
Define “photic zone”
___________________________________________________________________________
___________________________________________________________________________
b.
Depth of photic zone is determined by
___________________________________________________________________________ and
___________________________________________________________________________
c.
Tropical oceans appear very blue because there aren’t a lot of __________________
(noun) in the water
and the photic zone is __________ (adjective).
d.
More productive waters have more __________________ (noun) which scatter and absorb the sunlight,
making the photic zone __________
(adjective).
e.
Ocean colors during a bloom can be ___________, ____________, ____________, or ____________.
4.
Nutrients
a.
Nutrients accumulate in deeper waters.
b.
Nutrients are brought up to the photic zone by ____________
(noun), ______________
(noun), and
___________ (noun).
5.
Blooms
a.
Adequate sunlight and nutrients can cause blooms of ___________________________ (noun).
b.
Blooms of phytoplankton will deplete ____________ (noun) in the photic zone.
c.
Continued heating by the sun causes the upper ocean to become _________________ (adjective).
d.
Define “thermocline”
___________________________________________________________________________
___________________________________________________________________________
e.
________________ (noun) can swim through the thermocline so they can travel between the sunlit
surface waters and the deeper nutrient‐rich waters.
f.
________________
(noun) feed on phytoplankton.
All organisms eventually die and decompose, and contribute to the pool of _____________ (noun) in the ocean.
Email
kits@soest.hawaii.edu
to request a
completed teacher answer key. Please
include name, school and grade(s) taught in
your request. Mahalo!