PPT-Composition of the Atmosphere Through Time

and the Impact on Living Things Earths Atmosphere The gases that surround Earth and other planets make up the atmosphere These gases are like an envelope that protects us from the radiation that is caused by the suns . Key Terms. Atmosphere. – a thin envelope of gases that encircles the earth and other particles (aerosols). Weather. – the state of the atmosphere at a specific place and time. Meteorology. – the study of the atmosphere and the processes that cause weather. Essential Points. Heat, Temperature and Temperature Scales. The Electromagnetic Spectrum. Composition of the Atmosphere. Layers in the atmosphere are defined by temperature profiles. How pressure varies in the atmosphere. CHAPTER. Charging Toward Cleaner Air in London. More than 4000 people in London died during a “killer smog” event in 1952.. In 2003, London started charging a fee to people who drove into the city during the week.. The ocean/layer of gas that surrounds the Earth. It is composed of 78% Nitrogen and 21% Oxygen. The other 1 % is a mixture of other gasses. We depend on this balance of gas for our survival. When it is out of balance, we have problems.. NC Essential Standard:. Compare the composition, properties, and structure of Earth’s atmosphere to include: mixtures of gases and differences in temperatures and pressure within layers.. There are . E4.p2X-A,F, I. Characteristics of the Atmosphere. Composition of the Atmosphere. Atmosphere. -mixture of gases around the Earth. 78% Nitrogen-(released from decay/eruptions). 21% Oxygen. 1% Other- (Carbon Dioxide, Argon). Earth’s . protective bubble. NASA accessed via Wikipedia . compared to the size of the Earth (10. 4. km), the atmosphere is a thin shell (120 km).. . Earth’s Atmosphere. http://www.gsfc.nasa.gov/gsfc/earth/pinatuboimages.htm. Objectives. Describe the composition of Earth’s atmosphere.. Explain why air pressure changes with altitude.. Explain how air temperature changes with atmospheric composition.. Describe the layers of the atmosphere.. What is the atmosphere?. Definition: The envelope of gases surrounding planet Earth.. Why do we need the atmosphere?. The atmosphere provides protection for the planet from objects in space and contains gasses that help sustain life.. Fast . vs. Slow Carbon Cycles. There’s a “Fast” cycle, and a “Slow” cycle. Fast Carbon Cycle. – rapid interchange between . surface ocean. , atmosphere, and top layer of soil and biosphere. Time scales of days to ~decade.. 7.5 Composition and Structure of the Atmosphere What is the composition of Earth’s Atmosphere? SC.6.E.7.9, LA.6.2.2.3 Composition of Earth’s Atmosphere The atmosphere is the protective covering of Earth. It keeps Earth warm and protects it from Atmosphere Essential Question: How are we changing our atmosphere? Learning Goals: Be able to identify the layers of the atmosphere. Describe what molecules make up the atmosphere. Atmosphere Atmosphere (they are trivially simple, but they do give some interesting results if you ask the right questions). The Physical Principal – . Conservation of Mass. Bulk Silicate Earth . (the hypothetical homogeneous composition of the solid silicate Earth after core formation, but before any other differentiation process). . The layer of gases surrounding Earth; composed mainly of 78% nitrogen and 21% oxygen, and other gases (water vapor, dust, pollutants, etc.). Brainpop: . Earth’s atmosphere. Layers of the Atmosphere.