Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Biochemical oxygen demand wikipedia , lookup
History of geology wikipedia , lookup
Geochemistry wikipedia , lookup
Age of the Earth wikipedia , lookup
Large igneous province wikipedia , lookup
Schiehallion experiment wikipedia , lookup
Van Allen radiation belt wikipedia , lookup
Plate tectonics wikipedia , lookup
History of Earth wikipedia , lookup
Layers of the Earth And Atmosphere Density’s affect on Earth I. Layers of The Earth—Inside Out” The Inner Core B. The Outer Core C. The Mantle D. The Crust A. Layer Size Inner Core Outer Core State of Matter Compostition (what its made of) Density Temperature 1300 Km Solid Thick Iron (Fe) and Nickel (Ni)----or steel 11.5 g/cm³ 5000-6000ºC 2250 Km Liquid Thick Iron (Fe) and Nickel (Ni)----or steel 10.5 g/cm³ 2200-5000ºC Mantle 2900 Km Putty-like Thick Solid Mostly: 1. Silicon 2. Oxygen 3. Iron (7.8 g/cm3) 4. Magnesium (1.7 g/cm3) 4.4 g/cm³ 870-2200ºC Crust 8-32 Km Thick 2.7 g/cm³ 0-100ºC Solid Rock Made of most of the elements—most common: 1. Oxygen 46%--(1.4 g/cm3) 2. Silicon 27%--(2.3 g/cm3) 3. Aluminum 8%--(2.7 g/cm3) II. Inner Core A. Solid B. Composition: Iron (Fe) and Nickel (Ni)----or steel C. Size: 1300 Km Radius D. Temperature: 5,000 – 6000° C E. Average Density: 11.5 g/cm3 F. Earths Core— creates a magnetic field around the earth (magnetosphere). Van Allen Belts: Magnetism burning up UV radiation from sun III. Outer Core A. Liquid B. Composition: Iron and Nickel C. Size: 2250 Km thick D. Temperature: 2200-5000ºC E. Average Density: 10.5 g/ml IV. The Mantle A. Putty-Like Solid B. Composition: Mostly Silicon (Si--2.3 g/cm3), Oxygen (O---1.4 g/cm3), Iron (Fe--- 7.8 g/cm3), and Magnesium (Mg--- 1.7 g/cm3). C. Size: 2900 Km thick D. Temperature: 870-2200ºC E. Average Density: 4.4 g/cm3 F. Forces in the Mantle: Convection Currents cause movement in the crust—Earthquakes and Volcanoes. V. Crust • A. About 8-32 Kilometers Thick. B. Temperature between about 0-100 C. C. Solid Rock. D. Composed of most of the elements known to man— most common Oxygen 46%, Silicon 27%, and Aluminum 8% G. Composed of Tectonic Plates Tectonic Plates VI. Hydrosphere: A. The Oceans, Lakes, Glaciers, and clouds on top of the earth’s crust. B. The average density is 1 g/ml. Earths Atmosphere: Lowest to highest Layers Properties Temperature Altitude Troposphere 17 to -52° C 14.5 Km Stratosphere Around -3° C 50 Km Mesosphere Around -93° C 85 Km Thermosphere Around 1,727° C 600 Km VII. Atmosphere A. Composition: 78% Nitrogen and 21 % Oxygen. The rest is Carbon dioxide, water vapor, and other trace gases. B. Layers: 1. Troposphere: The lowest layer where we live. Clouds and weather form here. 14.5 Km high and temp is 17 to -52° C. 2. Stratosphere: Contains the ozone layer (molecules of three Oxygen atoms) which burns up deadly rays from the sun. Goes to about 50Km high and temp is around -3° C. Layers Cont. 3. Mesosphere: Goes to 85 Km. Temp -93°C. It is the coldest layer. It is also the layer in which meteors burn up. 4. Thermosphere: The hottest layer of the atmosphere—up to 1,727°C it extends to 600 Km high. VIII. Properties A) The higher you go the less dense. B) The higher you go the less pressure.