Greenhouse Effect

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Eachbox to be completed in with a value is worth 1 point.

DataTable 1

The Atmosphere

Greenhouse Gas Composition (in ppm)

Equilibrium Atmospheric Temperature (in °F)

H2O

(water vapor)

CO2

(carbon dioxide)

CH4

(methane)

N2O

(nitrous oxide)

With NO Greenhouse Gases

0

0

0

0

0

Today

70% Relative Humidity

300

93

21

95

Ice Age

?

250

90

20

91

DataTable 2

Concentration of Greenhouse Gases

(in ppm)

Number of Clouds

Equilibrium Atmospheric Temperature (in °F)

0

0

86

0

3

98

DataTable 3

Number of Glass Panes

Equilibrium Atmospheric Temperature (in °F)

0

111

1

118

DataTable 4

Gas Molecule

# of Infrared Photons Absorbed (out of 20)

# of Visible Photons Absorbed (out of 20)

Trial 1

Trial 2

Trial 3

Average # of Infrared Photons Absorbed

Trial 1

Trial 2

Trial 3

Average # of Visible Photons Absorbed

CH4 (methane)

09

09

10

09

08

09

10

09

CO2 (carbon dioxide)

07

06

07

07

06

07

07

07

H2O (water vapor)

22

25

24

24

26

25

25

25

N2 (nitrogen)

28

30

28

29

27

26

27

27

O2 (oxygen)

24

24

25

24

23

23

25

24

Questions

Fillin the blank spaces.

Experiment1

  1. In 2 or 3 sentences in the space below, compare the direction of the paths of sunlight and infrared photons in the simulation. Also include how the paths of infrared photons change when greenhouse gases are present in the atmosphere compared to when they are not.

The path of the sunlight and the protons is observed to move in form of waves creating spectrum. The radiations differ in their wavelength and frequencies depending on their intensity. The intensity of protons in this experiment signifies the amount of light reaching the detector and the intense the more the energetic hence high temperatures.

  1. When an atmosphere with NO greenhouse gases is simulated, the atmosphere’s temperature is _ compared to a simulation of an atmosphere with greenhouse gases.

    1. Higher b. lower

Lower

  1. During the Ice Age simulation, the atmosphere had a ___ concentration of greenhouse gases than today’s atmosphere, resulting in a temperature during the Ice Age compared to today.

a.Smaller greater b. Smaller lower c. Greater greater d.Greater lower

Smaller,lower

  1. Based on your observations and the data collected in experiment 1, in one or two statements in the space below, describe the general effect of greenhouse gases, and the effect of a change in greenhouse gas concentration, on atmospheric temperature. Phrase the statements in a way that you would explain the concept to one of your classmates.

Greenhouse gases forms a layer I the atmosphere which prevent the radiations from being absorbed back to the clouds. When the radiations hit the layer, they are bounced back to the atmosphere hence causing the atmospheric temperature to increase.

Experiment2

  1. In experiment 2, adding clouds to the atmosphere caused atmospheric temperature to:

    1. Increase b. decrease

Increase

  1. Based on the results of experiment 2, which statement below describes the effect of clouds on incoming solar radiation?

    1. Clouds reflect some solar radiation back to space.

    2. Clouds allow some solar radiation to pass through to the ground.

    3. Clouds have no effect on incoming solar radiation.

    4. both a and b

d

  1. Based on the results of experiment 2, which statement below describes the effect of clouds on infrared radiation?

    1. Clouds absorb some of the infrared radiation, coming from Earth and re-emit it back to the earth.

    2. Clouds allow some infrared radiation coming from Earth to escape the atmosphere.

    3. Clouds have no effect on infrared radiation.

    4. Both a and b.

b

Experiment3

  1. Based on observations made during experiment 3, in 2 or 3 sentences in the space below, compare the paths of infrared photons when virtual glass panes are in place to when there are no glass panes.

The movement is also observed to move in a form of spectrum but with a great frequency when virtual glass panes are in place. The frequency decreases when they are removed. The protons also seemed to be of higher intensity when the glass panes were in place.

  1. Your car has been parked outside on a cold but sunny day. When you get in the car, it is much warmer than the air outside. In 2 or 3 sentences, explain, based on the results of experiment 3, why this happens. Be sure to tie both solar and infrared radiation into your explanation.

The air which is in contact with the inner service of the car gets heated and since this air is not moving to the outer space, the temperature inside the car remains higher than the temperature outside the car.

  1. In 2 sentences, explain, based on the results of experiment 3, why the word “greenhouse” correctly describes the effect of gases like carbon dioxide and water vapor in our atmosphere.

Water vapor is always the most powerful and important greenhouse gas. The heat is trapped by the water vapor and the temperatures stay high. The experiment revealed that a higher amount of warming is caused by carbon. dioxide

Experiment4

  1. Based solely on the results of Experiment 4, which of the gases used in the experiment are greenhouse gases? In 1 or 2 sentences, explain how this was determined.

Water vapor, carbon dioxide, oxygen and nitrogen are the major greenhouse gases as per the outcome of the experiment. This gases form a layer I the atmosphere which makes the reflected radiation to be bounced back to the earth surface leading to global warming.

  1. Based solely on the results of Experiment 4, with the gases you listed in question 1. Above, which gas is the “best” greenhouse gas? In 1 or 2 sentences, explain how this was determined.

Water vapor is always the most powerful and important greenhouse gas. The heat is trapped by the water vapor, and the temperature stays high.

  1. In analyzing the data collected for the number of visible photons absorbed for each of the atmospheric gases used in experiment 4, which of the following statements would be a good conclusion?

    1. Each of the atmospheric gases used in the experiment is a greenhouse gas.

    2. Visible radiation coming directly from the Sun passes right through our atmosphere without being absorbed.

    3. All atmospheric gases absorb both visible and infrared radiation with equal preference

Reference

DavidPhilip Reiter 2010 TheInteractive Publication

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