Presentation is loading. Please wait.

Presentation is loading. Please wait.

Study Guide Atmosphere, Humidity and Seasons Why doesnt water vapor rise above other gases to a higher level of the atmosphere?

Similar presentations


Presentation on theme: "Study Guide Atmosphere, Humidity and Seasons Why doesnt water vapor rise above other gases to a higher level of the atmosphere?"— Presentation transcript:

1

2 Study Guide Atmosphere, Humidity and Seasons

3 Why doesnt water vapor rise above other gases to a higher level of the atmosphere?

4 Water vapor condenses and falls back to Earth

5 What type of cloud is associated with thunderstorms

6 cumulonimbus

7 Which element in Earths atmosphere is essential for human life

8

9 Hot air rising and cold air sinking causes

10 Air currents

11 How do clouds form

12

13 Why does ground fog form in the low areas?

14 Cool, descending air meets moist air in the low areas

15 Cloudy nights can be warmer than clear nights because clouds trap

16 heat

17 When moist air is cooled below its dew point water

18 Water condenses

19 What process is primarily responsible for the transfer of energy by air currents within the Earths atmosphere

20 Convection currents

21 By which process does sunlight travel through space

22 radiation

23 What type of cloud is associated with steady rain

24 nimbostratus

25 The ozone layer protects life on Earth from

26 UV radiation

27 Conduction is heat transfer by

28 Direct contact between particles

29 Most clouds form in the troposphere because

30 Thats where most of moisture is

31 Clouds are made of

32 Water/ Ice crystals

33 Describe how convection currents form

34

35 What is the % of Nitrogen in the atmosphere__________________; % oxygen ___________ What is the % of Nitrogen in the atmosphere__________________; % oxygen ___________

36

37 Name the layers of the atmosphere in order from the earth upwards

38

39 How was the early atmosphere formed

40 Volcanic eruptions of gases Cyanobacteria takes in CO 2 in photosynthesis and produces O 2 Volcanic eruptions of gases Cyanobacteria takes in CO 2 in photosynthesis and produces O 2

41 The ability of Earths atmosphere to absorb and retain heat is affected by the presence of two gases:

42 Water vapor Mainly CO 2 Water vapor Mainly CO 2

43 When dew point and temperature are close then the chance of precipitation is:

44 greater

45 Which atmosphere layer contains the ozone layer

46 stratosphere

47 The ozone layer is being destroyed by chemical reactions with sunlight and the following

48 Chloroflorcarbons: CFCs

49 The layers of the Earths atmosphere are divided based on

50 temperature

51 Insolation is

52 Incoming solar radiation

53 Where (location) is insolation the greatest on earth

54 equator

55 As the altitude increases in the troposphere the temperature-

56 decreases

57 Earths axis of rotation is tilted 23.5° relative to the plane of its orbit, which helps to cause

58 seasons

59 What is the date? Equinox: equal Day and night Equinox: equal Day and night

60 Summer: northern hemisphere

61 Winter northern hemisphere

62 What is equinox and what are the dates of the 2 equinoxes What are the dates of the solistices

63 Seasons The Earth's orbit is in the shape of an ellipse (a stretched out circle), so that sometimes the Earth is closer to the Sun than at other times The Earth is a very special planet in many ways. Just as Earth's unique atmosphere and its distance from the Sun work together to make Earth the right temperature to support life, Earth's orbit and its rotation work together to create the seasons.Earth's orbit and its rotation

64 Clouds and Humidity

65 WATER is the substance that can exist as a solid, liquid, and a gas in the Earths atmosphere.

66 Humidity: the amount of water vapor or moisture in the air

67 Dew Point is the temperature to which air must cool to become saturated Before it can condense water vapor must have a surface to condense on.

68 Saturated air = 100% relative humidity – it can hold no more water vapor!

69 Precipitation Precipitation is water (liquid or solid) that falls from the air to the Earth.

70 Cloud A cloud is a collection of millions of tiny water droplets or ice crystals. A cloud is NOT made up of water vapor! A cloud is a collection of millions of tiny water droplets or ice crystals. A cloud is NOT made up of water vapor!

71 Clouds cirrus - Thin, wispy, curly-shaped clouds. cumulo-nimbus- Large, dense, towering clouds that cause rain and thunderstorms. cumulus - Puffy clouds. fog - Ground-hugging clouds. stratus - Layered, horizontal clouds with a flat base. http://glencoe.mcgraw-hill.com/sites/0078617006/student_view0/

72 Joshua and Jennifer Mosser, Briar Woods High School Clouds In order for clouds to form, air must be at its dew point (temperature at which air is saturated). Water vapor condenses on small particles called condensation nuclei. Cirruslight, thin, feathery (fair weather clouds) Cumuluspuffy white clouds Stratuslow gray clouds

73 Cumulonimbus Clouds that produce thunderstorms

74 Layers of Atmosphere

75 Joshua and Jennifer Mosser, Briar Woods High School The Atmosphere Earths atmosphere is 21% oxygen and 78% nitrogen Human activities (cars, factories, burning land, coal) have increased carbon dioxide levels, causing a slight greenhouse effect Water vapor and carbon dioxide help the Earth to retain heat and make it warmer Burning fossil fuels also causes smog and contributes to acid rain Venus has an extreme greenhouse effect due to carbon dioxide Energy transfer in the atmosphere involves convection, radiation and conduction

76 Layers of the Atmosphere

77 A meteorologist studies and forecasts the WEATHER.

78 Layers in order Thermosphere Mesosphere Stratosphere Troposphere Thermosphere Mesosphere Stratosphere Troposphere

79 Layer of the atmosphere closest to Earth and has weather = TROPOSPHERE

80 Layer where the air pressure is the greatest = TROPOSPHERE

81 Layer of the atmosphere that contains the ozone layer = STRATOSPHERE

82 Ozone layer disappearing would lead to more cases of skin cancer

83 12/31/201382 Man-made chemicals have decreased the ozone concentration in the upper atmosphere.

84 CFCs are destroying the ozone layer. The chlorine atoms destroy ozone molecules.

85 What does temperature do in the troposphere as altitude increases? Temperature DECREASES What does temperature do in the troposphere as altitude increases? Temperature DECREASES

86 In which layer is the temperature the lowest? MESOSPHERE In which layer is the temperature the lowest? MESOSPHERE

87 Cold air is more dense than warm air; therefore it has GREATER pressure.

88 Heat Transfer

89 Radiation = the movement of energy through space Conduction = movement of heat by direct contact; by touch Example: metal pan on a hot stove Convection = movement of heat through a liquid or gas Radiation = the movement of energy through space Conduction = movement of heat by direct contact; by touch Example: metal pan on a hot stove Convection = movement of heat through a liquid or gas

90 12/31/201389 Areas near the equator receive more of the suns energy per unit area than nearer the poles.

91 12/31/201390 Convection Is a Current that is set up when hot less dense material rises, cools, becomes denser and sinks. Hot stuff rises cold stuff sinks

92 12/31/201391 Convection runs oceans, atmosphere and Earths interior.Plate tectonics is driven by convection in the Earths mantle.Some ocean currents are convection currents

93 Convection is the major mechanism of energy transfer in the oceans, atmosphere, and Earths interior. Convection in the atmosphere is a major cause of weather.

94 Early Atmosphere 12/31/201393

95 12/31/201394 The early atmosphere contained little oxygen and more carbon dioxide than the modern atmosphere.

96 12/31/201395 Early photosynthetic life (blue green algae) generated oxygen and consumed carbon dioxide. It was only after early photosynthetic life generated oxygen that animal life become possible.

97 Atmosphere Today 12/31/201396

98 12/31/201397 Earths atmosphere is 21% oxygen, 78% nitrogen and 1% trace gases.

99 12/31/201398 Human activities have increased the carbon dioxide content of the atmosphere.

100 12/31/201399 Volcanic activity and meteorite impacts can inject large quantities of dust and gases into the atmosphere.

101 12/31/2013100 The ability of the Earths atmosphere to absorb and retain heat is affected by the presence of gases like water vapor and carbon dioxide.

102 Earths atmosphere The oxygen so characteristic of our atmosphere was almost all produced by plants (cyan bacteria or, more colloquially, blue-green algae). Thus, the present composition of the atmosphere is 79% nitrogen, 20% oxygen, and 1% other gases. Auroras (North/South Polar Lights; or aurorae, sing.: aurora) are natural colored light displays, which are usually observed in the night sky, particularly in the polar zone. Some scientists call them "polar auroras" (or "aurorae polares"). In northern latitudes, it is known as the aurora borealis (or the northern lights), named after the Roman goddess of dawn, Aurora, and the Greek name for north wind, Boreas. It often appears as a greenish glow or sometimes a faint red, as if the sun was rising from an unusual direction. The aurora borealis is also called the northern polar lights, as it is only visible in the North sky from the Northern Hemisphere. The aurora borealis most often occurs from September to October and from March to April.sing.night skypolar zonelatitudesRomangoddessdawnAuroraGreekwindBoreaspolarNorthern Hemisphere

103 The composition of the atmosphere can change due to human, biologic, and geologic activity. The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun. Without these gases, heat would escape back into space and Earths average temperature would be about 60ºF colder. Because of how they warm our world, these gases are referred to as greenhouse gases.

104 12/31/2013103 The atmosphere of Venus is mostly carbon dioxide and very dense.

105 12/31/2013104 The Martian atmosphere is very thin and mostly Carbon Dioxide.


Download ppt "Study Guide Atmosphere, Humidity and Seasons Why doesnt water vapor rise above other gases to a higher level of the atmosphere?"

Similar presentations


Ads by Google