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    Theme
    Ocean and Cryosphere
    Also available in other versions: English version French version Spanish version

    Lesson A2 - Evidence of climate change

     

     

    MAIN SUBJECTS

    Natural sciences

    DURATION

    Preparation: 10min

    Activity: 1h30

    SUMMARY

    The students learn about the greenhouse effect by building a greenhouse as an analogy with greenhouse gases in the atmosphere.

    KEY IDEAS

    • All objects emit infrared radiation; the warmer they are, the more infrared radiation they emit.

    •  When the Earth’s surface is warmed by the sun, it emits infrared radiation.

    • The greenhouse gases in the Earth’s atmosphere absorb infrared radiation emitted by Earth’s surface. Only part of this infrared radiation escapes into space and the rest is sent back to the surface.

    • An increase in greenhouse gas concentration results in an increase in Earth’s surface temperature.

    INQUIRY METHOD

    Experimentation

     

    A2 EN

     

     

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