Presentation on theme: "The Atmosphere. Significance of the Atmosphere Protection –Meteoroids –High energy radiation Helps moderate temperature Just perfect for living things."— Presentation transcript:
Significance of the Atmosphere Protection –Meteoroids –High energy radiation Helps moderate temperature Just perfect for living things –Cellular Respiration vs Photosynthesis
Significance of the Atmosphere Equation
Composition of the Atmosphere Atmosphere Gases –Oxygen 21% –Nitrogen 78% –Other Gases Carbon Dioxide, Water Vapor, Argon, etc ---1% –Solid Particles (most microscopic)
Characteristics of the Atmosphere Atmosphere: What is it?
Characteristics of the Atmosphere Troposphere Atmospheric layer closest to the Earths surface Water vapor (clouds and precipitation) WEATHER: (define)
Characteristics of the Atmosphere Stratosphere The layer of the atmosphere that is above the troposphere Ozone layer (O 3 ) –Function: absorb harmful radiation Warms up this layer
Troposphere vs Stratosphere Video
Characteristics of the Atmosphere Temperature Inversion When cool air gets trapped in- between the Earths warmer troposphere and the surface of the Earth
Characteristics of the Atmosphere Why does Denver have a problem with the brown cloud or pollution sitting over the city?
Characteristics of the Atmosphere Mesosphere The coldest layer of the atmosphere located above the stratosphere Most meteoroids burn up here
Characteristics of the Atmosphere Thermosphere Atmospheric layer above the mesosphere No boundarymerges with space Temperatures reach a maximum of 1000°C (because molecules absorb solar radiation)
Characteristics of the Atmosphere Ionosphere Not a distinct layer, but a regions of charged particles Important for radio communication Aurora
Energy and weather Conduction the transfer of energy as heat between molecule as they collide Convection the transfer of energy by the movement of fluids Radiation The transfer of energy via electromagnetic radiation
Role of the Sun Temperature Differences on the Earth due to incoming solar radiation: Explain the amount of radiant energy per square milewith pictures