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liquid solid gas sublimation Melting energy Sun. Water Cycle is driven by ________from the _________ Solid to liquid Sublimation Solid to gas Freezing Liquid to solid Evaporation Liquid to gas Condensation Gas to liquid Transpiration Video Water Cycle Water evaporates from plants Does air have volume (takes up space)? yes Does air have mass? yes Layer of air that surrounds earth- atmosphere Video Earths atmosphere http://www.youtube.com/watch?v=1YAOT92wuD8 Video Traveling through Earths Atmosphere http://www.youtube.com/watch?v=3CerJbZ-dm0 Layers of Earth’s Atmosphere http://www.youtube.com/watch?v=WaikvaAw2nk iPhone in Space http://www.youtube.com/watch?v=y6ZMscMp8UM Exosphere What is the composition of Earth’s Atmosphere? • • • • • 78% Nitrogen 21% Oxygen 0.95 Argon < 1% Carbon Dioxide and other gasses varies but Water vapor – amount ________ almost all the water vapor is found in troposphere the ________________ Thermosphere Mesosphere Highest Jump Ever Video Stratosphere Troposphere The Earth’s pressure ___________________as rapidly decreases you go up in Earth’s Atmosphere Which layer of Earth’s Atmosphere is 80% of the Earth’s air located in? Troposphere True or False: the layers of the atmosphere are determined by the change of air pressure. False- it is determined by the change in temperature True or False: The temperature steadily decrease as you rise in elevation in Earth’s atmosphere. False- temperature decreases, increases, decreases, and then increases at each layer change Prevailing winds- Wind blows from one direction more than any other direction The pattern of prevailing winds influences global climatesWinds move moisture and heat around the world and also produce much of our weather. Ocean and wind circulation video sun’s heat Wind currents help distribute the ___________from one part of the world to another. warmer Warm air currents make areas _________than normal. Cold air currents make areas _________ than normal cooler Prevailing winds play a key role in determining the windward and _________ leeward _________ side of mountains. High Pressure Air Low Pressure Air Wind blows from areas of High Pressure to Low Pressure Differences in temperature and pressure How is wind named? Direction it is coming from not going What is the tool used to measure wind direction? Wind Vane What tool is used tool measure wind speed? Anemometer