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

Lesson B1 - The greenhouse effect: understanding with an analogy

 

MAIN SUBJECTS

Natural sciences

DURATION

Preparation: 10 min 

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

 

B1 EN

 

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