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. A Reynolds’ Production 2010. Review Really Fast. All . elements are pure substances . because it has . one type of atom . and . cannot be broken. down.. All . compounds are. made up of . 2 or more elements chemically joined together to form a new substance.. . General Characteristics. Composition- Gases, water vapour and dust particles. Structure: Layered structure, variation with altitude, latitude and seasons; Importance and characteristics of each layer.. By Hero Kim. Gr.8- Nelson Mandela. http://www.allsciencesites.com/news/gallery/the-earths-atmosphere-composition/the_earths_atmosphere_composition.jpg. content. Basic information about atmosphere. Stratosphere. 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.. Analysis with Instructional Guidance. Earth Science. Standards of Learning. 1. Presentation may be paused and resumed using the arrow keys or the mouse.. SOL ES.1. The student will plan and conduct investigations in . Analysis with Instructional Guidance. Earth Science. Standards of Learning. 1. Presentation may be paused and resumed using the arrow keys or the mouse.. SOL ES.1. The student will plan and conduct investigations in . . General Characteristics. Composition- Gases, water vapour and dust particles. Structure: Layered structure, variation with altitude, latitude and seasons; Importance and characteristics of each layer.. Composition of the Atmosphere. Composition = what something is made of.. “. Air”. is all around us and it behaves often like a liquid- it . flows, moves, and causes things to happen (weather!). . 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 Composition of the Atmosphere The atmosphere is comprised of a variety of gases: Major Constituents (99%): Nitrogen (N): 78% Oxygen (O 2 ): 21% Trace Constituents: Other: 1% (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). Average Atmospheric Composition. Permanent. Variable. SOURCE. (to atmosphere). SINK. (removal from atmosphere). N. 2. Fixed by soil bacteria. Fixed by ocean phytoplankton. Lightning. Denitrification by anaerobic . Rhythm:. The . arrangement of long and short sounds within a beat. .. Composer:. Someone who creates music.. Notation:. A set of written symbols used to represent music. Composition:. A piece of music.