Posted by: mrborden | February 3, 2013

Week 21 Global Carbon Cycle


Feb 8 2013
QFD: “If you want to know what a man’s like, take a good look at how he treats his inferiors, not his equals.” ― J.K. Rowling
?FD: Name 3 features of the ocean floor
Objective:3. Plate tectonics operating over geologic time has changed the patterns of land, sea, and mountains on Earth’s surface. As the basis for understanding this concept:
3a. Students know features of the ocean floor (magnetic patterns, age, and sea-floor topography) provide evidence of plate tectonics.

1) finish drawing on SFS
2) film on SFS


Feb 7 2013
QFD: I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.Maya Angelou
?FD: Name 2 sources of internal energy on Earth? External?
Objective:3. Plate tectonics operating over geologic time has changed the patterns of land, sea, and mountains on Earth’s surface. As the basis for understanding this concept:
3a. Students know features of the ocean floor (magnetic patterns, age, and sea-floor topography) provide evidence of plate tectonics.

Draw color label pgs 462 and 463 on one side of the paper and write all of the descriptions for the parts of the ocean floor. Then draw pg 128 on the back of the paper ( due tomorrow)
ocean-floor
seafloorfeatures.JPG
Feb 6 2013
QFD: If you don’t like something, change it. If you can’t change it, change your attitude.Maya Angelou
?FD: Nitrogen is returned to atmosphere through?
7c. Students know the movement of matter among reservoirs is driven by Earth’s internal and external sources of energy.
1) quiz
2) check vocabulary

1 Nitrogen is released as a gas by __________.

A bacteria in the roots of legumes
B the decomposition of proteins in the soil
C respiration
D photosynthesis

2 Increased global temperatures have been attributed to increased level of carbon dioxide in the atmosphere. All of the following lead to an increased amount of carbon dioxide entering the atmosphere except

A combustion of fossil fuels.
B photosynthesis by phytoplankton.
C deforestation of tropical rain forests.
D volcanic activity.

3 Carbon dioxide is added to the atmosphere by all of the following EXCEPT __________.

A reaction of acid rain with limestone
B photosynthesis
C combustion of fossil fuels
D volcanic out-gassing

4 In the nitrogen cycle, nitrogen flows through

A evaporation and precipitation.
B predator–prey relationships.
C nitrogen fixation and bacteria decomposition.
D photosynthesis and cellular respiration.

5 Human activities have an effect on the concentration of all of the following atmospheric gases EXCEPT __________.

A carbon dioxide
B methane
C ozone
D water vapor

6 Carbon moves through Earth’s major spheres by way of the

A carbon cycle.
B carbon steps.
C carbon process.
D carbon stages.

7 With the carbon cycle, which of the following would NOT be a carbon reservoir?

A atmosphere
B ocean
C biomass
D electricity

8 Global climate can be changed due to the release of carbon into the atmosphere by which of the following processes?

A deforestation
B hurricane
C aforestation
D extinction of a species

9 The __________ is Earth’s largest depository of carbon.

A lithosphere
B asthenosphere
C outer core
D inner core

10 Which of the following is the primary external source of energy behind the water cycle?

A the Sun
B rivers
C oceans
D atmospheric gases

11 As part of the carbon cycle, volcanic eruptions release carbon dioxide into the atmosphere. This movement of carbon is driven by

A the biogeochemical processes of Earth.
B both Earth’s internal and external sources of energy.
C Earth’s internal sources of energy only.
D Earth’s external sources of energy only.

12 With the history of early Earth, a source of most carbon dioxide in the atmosphere was thought to be from __________.

A volcanic activity
B decaying animals
C the formation of the oceans
D burning coal

13 Plants remove carbon dioxide from the atmosphere through photosynthesis and animals release carbon dioxide through __________.

A cellular glands
B cellular respiration
C cellular output
D photosynthetic respiration

14 The remains, or biomass, of decaying plants are oxidized and carbon dioxide is __________.

A dissolved
B returned to the atmosphere
C replaced with oxygen
D consumed by animals

15 Plants move carbon dioxide out of Earth’s atmosphere by means of __________.

A cellular respiration
B photosynthesis
C equilibrium
D transfusion

16 The oldest rocks on the ocean floor are located near the ____
a) mid ocean ridge b) trench c) continetal shelf d) abyssal zone

17 What are the envelope of gases surrounding Earth called?
a) Hydrosphere b) lithosphere c) atmosphere d) biosphere

18 Most carbon trapped in rock is located in the?
a) Hydrosphere b) lithosphere c) atmosphere d) biosphere

19) Oceans , lakes, and the polar ice caps are part of the ?
a) Hydrosphere b) lithosphere c) atmosphere d) biosphere

20 The most abundant gas in our atmosphere is?
a) carbon dioxide b) nitrogen c) oxygen d) water vapor

Feb 5 2013
QFD: Sometimes good things fall apart so better things can fall together. Anon
?FD: Name the reservoirs that carbon is in?
7c. Students know the movement of matter among reservoirs is driven by Earth’s internal and external sources of energy.
1) vocabulary ( brown book) define each word and then use 5 in a paragraph

1) equator 2) hydrosphere 3) lithosphere 4) asthenosphere 5) atmosphere 6) magnetosphere 7) salinity 8) surface zone 9) thermocline 10) deep zone 11) continental shelf 12) abyssal plain 13) upwelling 14) trench 15) midocean ridge 16) atoll 17) seamounts 18) guyot 19) neritic zone 20) crest 21) trough 22) wavelength 23) tsunami 24) bathyal zone 25) benthos



Feb 4 2013 (My sisters bday)
QFD: The weak can never forgive. Forgiveness is the attribute of the strong.
Mahatma Gandhi
?FD: What percentage of the atmosphere is nitrogen? O2? CO2?
Objectives:7b. Students know the global carbon cycle: the different physical and chemical forms of carbon in the atmosphere, oceans, biomass, fossil fuels, and the movement of carbon among these reservoirs.
7c. Students know the movement of matter among reservoirs is driven by Earth’s internal and external sources of energy.
WOD: Reservoir: storage tank, Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.
The term reservoir may also be used to describe naturally occurring underground reservoirs such as those beneath an oil or water well.
1) video clip w notes
2) reading
3) check pictures
Understanding the Global Carbon Cycle

Ecologists have long been interested in carbon. This interest stems from several reasons. First, humans (as well as all of the other plants and animals on Earth) are made primarily of carbon. In fact, nearly 50% of our dry weight is carbon. Ecologists can learn much about ecosystems and what they do by constructing carbon budgets (or energy budgets) from measurements of productivity, food chains, and nutrient cycling.

Second, carbon, in the form of carbon dioxide (CO2), is the major greenhouse gas released to the atmosphere as a result of human activities. The continued release of greenhouse gases is raising the temperature of the earth, disrupting the climates we and our agricultural systems depend on, and raising sea-level. The concentration of CO2 in the atmosphere has already increased by nearly 40% since the start of the industrial revolution sometime around the middle of the 18th century and will continue to increase unless society eliminates the use of fossil fuels.

Most of the increase in atmospheric CO2 concentrations has come from and will continue to come from the use of fossil fuels (coal, oil, and natural gas) for energy, but more than 30% of the increase over the last 150 years came from changes in land use. These include, for example, the clearing of forests and the cultivation of soils for food production
globalcarboncycle
The global carbon cycle involves the carbon in and exchanging between the earth’s atmosphere, fossil fuels, the oceans, and the vegetation and soils of the earth’s terrestrial ecosystems
gcarboncycle
If the global totals for photosynthesis and respiration are not equal, carbon either accumulates on land or is released to the atmosphere. Unfortunately, the global rates of photosynthesis and respiration are neither known nor measured well enough to determine annual changes in carbon storage. On the other hand, human use of the land, for example the clearing of forests for croplands, is relatively well documented, both historically and with satellites, and thus can be used to determine changes in the storage of carbon on land.



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Responses

  1. El niño is a weather cycle that occurs every 3 to 7 years. During el niño cycle the waters are 41° warmer in the Pacific Ocean near the equator. As the water starts to warm up it also heats up the air above it. El niño usually begins in the summer and peaks in the winter then fades out in late spring to early summer.

  2. Dead zoneis starting to be a global problem trend. The more dead zones expand the less oxygen were receiving. If oxygen levels continue to drop millions of creatures will feel the impacts. Some may adapt, others wont.

    • excellent job cesar


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