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The Atmosphere Atmosphere The atmosphere is a mixture of gases and dust that surrounds a planet. Earth’s atmosphere is divided into FOUR layers. 7 ½ min Journey through the layers of atmosphere BBC 5 min Earth’s Atmosphere – surfing the air
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Atmosphere 78% nitrogen 21% oxygen 1% (argon, carbon dioxide, dust,
water vapor, ash, dirt & smoke) 5 min Layers of Atmosphere
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Troposphere All weather and life – are found in this layer.
It is a layer of mixing and changing gases. TROPO = change or mixing
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Stratosphere The gases found here are layered.
The OZONE layer is located in this layer. It protects life on Earth from harmful UV radiation from the sun. STRATO = layer
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Mesosphere The middle layer of the atmosphere. Coldest layer
Layer where meteors burn up Meso = middle Coldest
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Thermosphere The outermost and the hottest layer
“Northern lights” - auroras Thermo = heat hottest
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