Posted by: mrborden | November 12, 2012

Week 11 Greenhouse Effect

Nov 16 2012
Computer lab
answer questions that you placed onto your website below the question or on a separate sheet of paper ) only students without the internet will get full credit that way!
Nov 15 2012
QFD: “Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.” ― Albert Einstein
?FD:What planet has the most extreme greenhouse effect?
Objective: 4d. Students know the differing greenhouse conditions on Earth, Mars, and Venus; the origins of those conditions; and the climatic consequences of each.
1) graph

2) global warming video ( 1 page paper on what global warming is and what can humans do to prevent catastrophic disasters in the future) or write a convincing letter to a congressman providing example of global warming and what we (humans) should do to prevent it

Nov 14 2012
QFD: “Those who mind don’t matter, and those who matter don’t mind.” ― Bernard M. Baruch
?FD: How much radiation is scattered by clouds?
Objective: 4d. Students know the differing greenhouse conditions on Earth, Mars, and Venus; the origins of those conditions; and the climatic consequences of each.
1) Quiz
2) draw temperature inversion
1 ) Most of the Sun’s energy that reaches Earth is transferred through __________.
A conduction
B convection
C radiation
D conduction and convection

2 Which of the following would be a disadvantage of solar energy?
A solar energy is a free fuel
B solar energy can only be stored at night
C solar energy is copious
D solar energy is non–polluting

3 Which of the following processes is least likely to result in warming of Earth’s atmosphere?
A absorption of incoming solar radiation by ozone
B conduction of energy between the ground and the atmosphere
C convection of warm gases in lower troposphere rising to higher levels
D reflection of incoming solar radiation by Earth’s atmosphere and surface

4 About what percent of solar radiation is absorbed by the atmosphere and clouds?
A 5%
B 20%
C 40%
D 50%

5 When the Sun’s radiant energy is absorbed, it
A is dissolved by cooler temperatures.
B makes molecules move slower.
C is released as solids.
D is converted to heat.

6 The land and sea on the Earth’s surface absorbs about __________ of direct and diffused radiation from the sun.

A 50%
B 75%
C 85%
D 100%

7 When radiant energy is absorbed, __________.
A reflection occurs
B temperature increases
C temperature will decrease
D converted heat will cease

8 __________% of all solar radiation is reflected back into space.
A 10
B 30
C 50
D 75

9 __________ is the process in which incoming solar radiation is used to make carbohydrates.
A photosynthesis
B absorption
C respiration
D reflection

10 All of the following gases are responsible for absorbing Earth’s thermal radiation EXCEPT __________.
A carbon dioxide
B methane
C nitrogen
D water vapor

11 Greenhouse gases such as carbon dioxide, methane, and water vapor help maintain __________ near Earth’s surface.
A cold temperatures
B warm temperatures
C extreme weather changes
D oxygen levels

12 The process in which gas particles retain the thermal energy from solar radiation is called ___________.

A reflection
B scattering
C the greenhouse effect
D temperature inversion

13 Which of the following gases is most responsible for the greenhouse effect?
A nitrogen
B oxygen
C carbon dioxide
D hydrogen

14 What type of radiation is emitted from the Earth’s surface, absorbed by gases in the atmosphere and causes the greenhouse effect?
A infrared
B ultraviolet
C visible light
D x–rays

15 How does the greenhouse effect on Venus compare with the greenhouse effect on Earth?
A The greenhouse effect on Venus is less than it is on Earth.
B The greenhouse effect on Venus is greater than it is on Earth.
C The greenhouse effect on Venus the same as it is on Earth.
D Venus does not have the greenhouse effect.

16 If the greenhouse effect on Earth increased significantly, the Earth’s climate could more closely resemble
A Mars.
B Venus.
C Mercury.
D the Moon.

17 Without the greenhouse effect, Earth’s average global temperature would be
A 60°F warmer than it is now.
B 60°F colder than it is now.
C much colder, like Venus.
D much warmer, like Mars.

18 Differences in atmospheric gases cause differences in the greenhouse effect on different planets. The greenhouse effect on Earth is greater than the greenhouse effect on
A Mars, but less than the greenhouse effect on Venus.
B Mercury, but less than the greenhouse effect on the Moon.
C the Moon, but less than the greenhouse effect on Mars.
D Venus, but less than the greenhouse effect on Mars.

19 Which of the following is a reason why life is only found on Earth and not on Mars or Venus?
A Venus has a runaway greenhouse effect, which caused the greenhouse gases to increase making the planet extremely hot.
B Mars has a thin atmosphere so the greenhouses gases are not able to absorb much of the infrared energy causing the planet to be extremely cold.
C The greenhouse gases in the atmosphere of Earth allow temperatures to stay mild and consistent and water to stay in the liquid form.
D All of the above

20 Venus has the hottest surface temperature of any planet in our solar system, with the average temperature being 464°C. What is the main cause of the high temperature on Venus?
A greenhouse effect
B large amounts of volcanic activity
C sulfuric acid rain
D high atmospheric pressure

Nov 13 2012
QFD: It is not in stars to hold our destiny, but in ourselves – Jordan
?FD: Name the 3 major greenhouse gases
Objective: 4d. Students know the differing greenhouse conditions on Earth, Mars, and Venus; the origins of those conditions; and the climatic consequences of each.
1) earths atmosphere
2) winds
3) notes

Earliest atmosphere

The outgassings of the Earth were stripped away by solar winds early in the history of the planet until a steady state was established, the first atmosphere. Based on today’s volcanic evidence, this atmosphere would have contained 60% hydrogen, 20% oxygen (mostly in the form of water vapor), 10% carbon dioxide, 5 to 7% hydrogen sulfide, and smaller amounts of nitrogen, carbon monoxide, free hydrogen, methane and inert gases.[citation needed]

A major rainfall led to the buildup of a vast ocean, enriching the other agents, first carbon dioxide and later nitrogen and inert gases. A major part of carbon dioxide exhalations were soon dissolved in water and built up carbonate sediments.

Second atmosphere

Water-related sediments have been found dating from as early as 3.8 billion years ago.[17] About 3.4 billion years ago, nitrogen was the major part of the then stable “second atmosphere”. An influence of life has to be taken into account rather soon in the history of the atmosphere, since hints of early life forms are to be found as early as 3.5 billion years ago.[18] The fact that this is not perfectly in line with the 30% lower solar radiance (compared to today) of the early Sun has been described as the “faint young Sun paradox”.

The geological record however shows a continually relatively warm surface during the complete early temperature record of the Earth with the exception of one cold glacial phase about 2.4 billion years ago. In the late Archaean eon an oxygen-containing atmosphere began to develop, apparently from photosynthesizing algae which have been found as stromatolite fossils from 2.7 billion years ago. The early basic carbon isotopy (isotope ratio proportions) is very much in line with what is found today,[19] suggesting that the fundamental features of the carbon cycle were established as early as 4 billion years ago.

Third atmosphere
Oxygen content of the atmosphere over the last billion years
The accretion of continents about 3.5 billion years ago[20] added plate tectonics, constantly rearranging the continents and also shaping long-term climate evolution by allowing the transfer of carbon dioxide to large land-based carbonate storages. Free oxygen did not exist until about 1.7 billion years ago and this can be seen with the development of the red beds and the end of the banded iron formations. This signifies a shift from a reducing atmosphere to an oxidising atmosphere. O2 showed major ups and downs until reaching a steady state of more than 15%.[21] The following time span was the Phanerozoic eon, during which oxygen-breathing metazoan life forms began to appear.

Currently, anthropogenic greenhouse gases are increasing in the atmosphere. According to the Intergovernmental Panel on Climate Change, this increase is the main cause of global warming.[22]
1) What is not a characteristic of the earliest forms of life?
a) they need carbon b) they need water c) they need oxygen d) they need nitrogen
2) Do the wavelenghths increase or decrease when solar radiation reflects off of earths surface?
3) What detrimental affect do CFC’s have on our environment?
4) Radiation can be used by? a) plants b) water c) soil d) none our used
5) Which would increase the greenhouse effect quicker? use of gasoline powered vehicles or eating more beef
6) how did oxygen get into our atmosphere?
7) If a person travels up a tall mountain, the pressure and temperature will? increase or decrease?
8) draw a picture of a sea breeze on a hot sunny day
9) Explain why there is more carbon in the air during the winter in the northern hemisphere than in the summer
10) About ____ % of solar radiation is absorbed at Earths surface?


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