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Open, closed

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... a system and brings it back to balance and _____ feedback moves a system away from balance $1000 homeostasis _____ is an internal ... our oceans, lakes and rivers – PowerPoint PPT presentation

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Title: Open, closed


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Systems misc Water cycle OTHER CYCLES Water pollution Using terms
200 200 200 200 200 200
400 400 400 400 400 400
600 600 600 600 600 600
800 800 800 800 800 800
1000 1000 1000 1000 1000 1000
4
200
Open, closed
A(n) ____________system exchanges energy and
matter with their surroundings. A ______ system
only exchanges energy
5
400
boundaries
Physical limits to a system are called?
6
600
Input and output
_______are materials that enter a system and
_____ leave a system
7
800
Positive and negative
_____________________ feedback stabilizes a
system and brings it back to balance and
_________________ feedback moves a system away
from balance
8
1000
homeostasis
___________ is an internal stabilized environment
9
200
Integrated 2
What is the name of this science course
10
400
Scientific method
What is the method use to investigate scientific
problems?
11
600
marble, limestone and coal
Name three types of rock that contains carbon
12
800
Show me your answer
Why is studying ecology important?
13
1000
In the stars
Other than on earth where is carbon manufactured?
14
200
Salt water
Are the oceans fresh water or salt water?
15
400
3
______ of all water on the earth is fresh water.
16
600
About 90
______ of water vapor comes from our oceans,
lakes and rivers.
17
800
69
Of our fresh water resources what percent is
trapped as ice?
18
1000
Show your visual representation
Draw and label the main parts of the water cycle
19
200
Carbon
What element is in all living things?
20
400
Oil deposits, coal deposits and calcium carbonate
(marble, limestone)
Name three types of long term carbon cycles
21
600
Nitrogen fixing bacteria
___________________ is most essential for
bringing nitrogen into a food web.
22
800
Hydro and geo spheres
What parts of the Earth does the phosphorus cycle
includes
23
1000
Soil, producer, consumer
Describe a Short term Phosphorus cycling path?
24
200
watershed
________________ is an area of land from which
all runoff drains into a body of water. ?
25
400
Show me your answer
What is one way to prevent nonpoint source
pollution?
26
600
Roads and parking lots, household, fields,
constructions sites.
Name three sources of nonpoint pollution
27
800
Gravity and the land terrain
What determines a rivers direction of flow?
28
1000
Combined sewer overflow or an upset
Why might sludge from a treatment plant end up in
the Puget Sound?
29
200
Testable
Modern scientific theories are
30
400
Experimental control
What is used a a standard of comparison in a
laboratory experiment
31
600
Manipulated or independent variable
This variable is the one that you change
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800
Responding or dependent variable
This variable is the one that you measure
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1000
flux
_________ determines how fast matter leaves a
system
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