The moving systems *

* *All water on Earth *Makes Earth special *Water exists in all states *Only planet to be able to support life because it contains water

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*Cryosphere is a part of the hydrosphere *Made of the Ice *About 3% of the Hydrosphere *

* *Main Interactions through water cycle *Hydrosphere is very dynamic and open system *Water evaporated in atmosphere is water vapor *Always moving watercycle

*Hydrosphere is essential for life *Fresh water is a limited resource *People affect water sources, water management is an ongoing challenge *

* *How does water and the water cycle affect you here where you live?

* *Gasses surrounding the Earth *Extends hundreds of miles *Wind is movement of the air in atmosphere

* *No distinct end *Merges with space *Mostly Just oxygen and nitrogen *Some Argon and very little Carbon Dioxide *Greenhouse gas that traps heat!

* Write into your notes and then share with a partner * If Carbon Dioxide traps heat, explain what happens if there is more of it in the air .

* *Troposphere *Where weather and life happens *Stratosphere *Where airliners fly *Ozone layer is located here *Mesosphere *Charged with Ions, burns up meteorites *Thermosphere *Very thin, turns sunlight to Northern Lights *Exosphere – Merging with space

* *Serves as a fliter from Sun’s ultaviolet radiation *absorption of ultraviolet radiation by ozone creates a source of heat *Depletion- decrease *Caused by green house gases (CO2 , CO, CH4 ) and chemicals in refrigerators, air conditioners, cleaning of electronic equipment, and more * results in holes in the Ozone layer Ozone Depletion

*Provides Oxygen and CO2 essential for human and plant life *Protects from sun’s harmful radiation *Controls climate *Open system transfers through water and carbon cycles *We need to be careful of CO2 we put in *

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