Presentation on theme: "Weather Unit Foldable In the upper right hand corner write"— Presentation transcript:
1 Weather Unit Foldable In the upper right hand corner write Your nameToday's dateCore
2 Yellow Paper Title The Atmosphere What is the atmosphere?What is the function of the atmosphere?The atmosphere islayers of gasses thatsurround the Earth.Earth’s atmosphere hastwo main functions: 1st itcontains gas like O2 thatwe need to live and 2nd ittraps heat so the water onthe planet remains liquid.
3 The Atmosphere What gases are in the atmosphere? There are 2 main gasesin the atmosphere1st Nitrogen 78%2nd Oxygen 21%.All other gases make upthe other 1%.
4 Green Air Pressure What is air Pressure? What is Barometric pressure? The result of the weightof a column of air pushingdown on an area.Changes in the atmospheric pressure as shown by a barometer
5 Air Pressure What are the Properties of air? Altitude/Elevation How does altitude affect air pressure and density?Air has mass, density, and pressure.The distance above sea level. (the surface of the ocean)The higher the altitude the lower the air pressure and denistyThe lower the altitude the greater the air pressure and density.
7 Blue Title Layers of the Atmosphere How many layers are there in the atmosphere?There are 5 layers, the troposphere, stratosphere, mesosphere, thermosphere, and exosphere,
8 Layers of the Atmosphere Troposphere:- This is the layer we live in and the smallest layerTemperature decreases as altitude increases 140 to - 76 degrees FAll weather happens hereThis is the ONLY layer living things can live in16 km above sea level
9 Layers of the Atmosphere Stratosphere:Temperature increases as altitude increases from -76 to 32 degrees F- Ozone layer found here, and weather Balloons50 km above the earth
10 Layers of the Atmosphere Mesosphere:- Temperature decreases to coldest point 32 to -130 degrees F.- Meteor Showers- 50 to 90 km
11 Layers of the Atmosphere Thermosphere:- Temperature increases 2700 degrees F- Aurora borealis (Northern lights), International Space Station, Space Shuttle stay in this layer.- 90 to 500 km from sea level
12 Layers of the Atmosphere Exosphere:- Temperature Increases to 5000 degrees F- Satellites orbit here- 500 km + from sea level
13 White title Air Masses and air Fronts There are 4 types of air masses classified by temperature, and humidity.A huge body of air that has similar temperature, humidity, and air Pressure.Tropical: warmPolar: cooledContinental: dryMaritime: wet
24 White Title Weather Factors Radiation: the transfer of energy by electromagnetic wavesConduction: heat transferred through a substance by the direct contact of molecules.Convection Currents: the transfer of heat by the movement of a heated fluid.
25 White Title Weather Factors Weather is caused by heat energy, moister, wind, air pressure.The ozone layer absorbs powerful ultraviolet radiation from the sun.Green house effect: process by which gases hold heat in the air. CO2
26 White Title Weather Factors Temperature: the average amount of energy of motion of the molecules of a substance.Heat: the transfer of energy from a hotter substance to a cooler one.
27 Blue Title WindWind: the horizontal Movement for air from an area of high pressure to an area of low pressure.All wind is caused by differences in air pressure.Wind is named by the direction from which it comes from.
28 Blue Title WindJet Stream bands of high-speed winds about 10km above earth’s surface.Prevailing Westerlies: mid-latitude, wind that blow from West to East.
29 Green Title Precipitation Precipitation: any form of water that falls from the clouds and reaches Earth’s surface. (liquid or solid)There are 5 common types of precipitationWaterSleetFreezing RainHailsnow
30 Green Title Precipitation Humidity: measure of the amount of water vapor in the airWater vapor: water in the form of a gasMoist air is more dense then dry airLiquid water in more dense then water vaporWarm air holds more water vapor then cold air