Do Now: We all know that we cannot live on other planets, but why? What makes Earth so unique that we can live on it?

Pre-Assessment 1.How does weather affect soil? 2.How does weather affect you? 3.What is the difference between weather and climate? 4.What are the layers of the atmosphere? 1.How does weather affect soil? 2.How does weather affect you? 3.What is the difference between weather and climate? 4.What are the layers of the atmosphere?

Aim: How does our atmosphere impact our climate and weather?

Refers to the state of the atmosphere at a specific time and place. The one thing that you can talk to anybody about If you don’t like the weather just wait around it will change in Texas What are some of the factors that affect the weather? Refers to the state of the atmosphere at a specific time and place. The one thing that you can talk to anybody about If you don’t like the weather just wait around it will change in Texas What are some of the factors that affect the weather?

Temperature is the measure of the average amount of motion in particles.

a natural movement of air of any velocity; especially : the earth's air or the gas surrounding a planet in natural motion horizontally ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Humidity The amount of water vapor present in the air Relative Humidity -is a measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature The amount of water vapor present in the air Relative Humidity -is a measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature

FMasses of small water droplets or tiny ice crystals that float in the air. FThree main types are cirrus, cumulus, and stratus. FOther clouds are a mixture of these three main types. FMasses of small water droplets or tiny ice crystals that float in the air. FThree main types are cirrus, cumulus, and stratus. FOther clouds are a mixture of these three main types.

Precipitation FWater that falls from the clouds FAir temperature determines the form of precipitation that falls F4 main types of Precipitation: Rain, Sleet, Snow and Hail FWater that falls from the clouds FAir temperature determines the form of precipitation that falls F4 main types of Precipitation: Rain, Sleet, Snow and Hail

Previously… We discussed Earth’s internal structure & function as well as Earth’s soil formation and the importance of not degrading this natural resource. Now we will discuss the outer layers of Earth and how they help keep us safe! We discussed Earth’s internal structure & function as well as Earth’s soil formation and the importance of not degrading this natural resource. Now we will discuss the outer layers of Earth and how they help keep us safe! ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Types of Precipitation Rain Sleet Snow Hail

Composition of the Atmosphere: FHas changed a lot over 4.6 billion years. FStarted from gases emitted from volcanoes. FOxygen began accumulating 2.5 billion years ago. FHas changed a lot over 4.6 billion years. FStarted from gases emitted from volcanoes. FOxygen began accumulating 2.5 billion years ago.

Composition of Air FNitrogen and Oxygen most abundant. FVaries from time to time and place to place. FEx: rush hour and near factories and airports. FNitrogen and Oxygen most abundant. FVaries from time to time and place to place. FEx: rush hour and near factories and airports.

Our Atmosphere is a layer of gases held close to the earth by the force of gravity. FYI: The farther you are from the center of Earth, the weaker gravity’s force is on you is a layer of gases held close to the earth by the force of gravity. FYI: The farther you are from the center of Earth, the weaker gravity’s force is on you

Layers of the atmosphere FThere are 4 layers in the atmosphere FThey are the troposphere, mesosphere, thermosphere, and stratosphere FThere are 4 layers in the atmosphere FThey are the troposphere, mesosphere, thermosphere, and stratosphere

Question F Why do you think the temperature falls and rises twice, going from lower to higher altitudes?

Troposphere F10-20 km (5-10 miles up) FWhere all the weather we experience occurs FContains most of the atmospheric water vapor & clouds FLocation of greenhouse gases which trap (absorb) radiation from the sun warming our surface FBecomes colder with an increase in altitude F10-20 km (5-10 miles up) FWhere all the weather we experience occurs FContains most of the atmospheric water vapor & clouds FLocation of greenhouse gases which trap (absorb) radiation from the sun warming our surface FBecomes colder with an increase in altitude

Composition of the Atmosphere: ESRT All other gasses: CO 2, Ar, Methane etc

Troposphere Composition F78% N 2 F20% O 2 F Less than 2% F Water vapor (0.1-4%) F Argon gas (1%) F Carbon Dioxide (0.04%) F Trace gases F78% N 2 F20% O 2 F Less than 2% F Water vapor (0.1-4%) F Argon gas (1%) F Carbon Dioxide (0.04%) F Trace gases

Pause… FWhy do you think most of the planets air is in the troposphere?

Stratosphere F contains the Ozone Shield 17–26 km (10– 16 mi) above sea level resulting in temp. increasing with height F no precipitation F contains the Ozone Shield 17–26 km (10– 16 mi) above sea level resulting in temp. increasing with height F no precipitation

Ozone layer/shield F Ozone (O 3 ) absorbs most of the UV radiation from the sun and filters its rays F This UV absorbtion causes it to heat up the part of the stratophere that’s closer to the sun (farthest from Earth) F Ozone (O 3 ) absorbs most of the UV radiation from the sun and filters its rays F This UV absorbtion causes it to heat up the part of the stratophere that’s closer to the sun (farthest from Earth)

Mesosphere FExtends about 80km above Earth’s surface FArea where meteors are usually burnt up FExtends about 80km above Earth’s surface FArea where meteors are usually burnt up

Thermosphere (Ionosphere) Fis the thinnest gas layer located 110km above Earth FSpace shuttle orbits here FFYI: Called ionosphere b/c of ionization that takes place Fabsorbs the solar wind (energetic photons from the sun) FEx: Aurora Borealis Freflects long distance radio waves making long distance radio communication possible Fis the thinnest gas layer located 110km above Earth FSpace shuttle orbits here FFYI: Called ionosphere b/c of ionization that takes place Fabsorbs the solar wind (energetic photons from the sun) FEx: Aurora Borealis Freflects long distance radio waves making long distance radio communication possible

Frequency Waves Passing Through the Atmosphere

The aurora borealis occurs in which of the following parts of the atmosphere? A.Troposphere B.Thermosphere C.Mesosphere D.Hydrosphere E.Stratosphere A.Troposphere B.Thermosphere C.Mesosphere D.Hydrosphere E.Stratosphere

FB Thermosphere (ionosphere)

Which of the following are the two most important factors in determining a habitat’s climate? A.Temperature/wind speed B.Wind direction/precipitation C.Wind speed/rate of evaporation D.Rate of evaporation/temperature E.Temperature/precipitation A.Temperature/wind speed B.Wind direction/precipitation C.Wind speed/rate of evaporation D.Rate of evaporation/temperature E.Temperature/precipitation

FE) Average Temperature & Average Precipitation

The atmosphere is warmed as gases such as water vapor and carbon dioxide absorb the infared heat radiated from the earth. This process is best described as A.Ozone depletion B.The green house effect C.Biomagnification D.Ionization E.Convection A.Ozone depletion B.The green house effect C.Biomagnification D.Ionization E.Convection

FB= As the sun’s light passes through the atmosphere it strikes the solid earth. The earth with its soil, water, buildings, asphalt and concrete absorb this radiant energy. This energy is then radiated back into the atmosphere as infrared radiation. This radiation can be reflected back into the atmosphere (the greenhouse effect) or pass back into space

Summary FHow do we impact the atmosphere? Positive and/or negative impacts.