Earth´s atmosphere

21/02/2020
Gimm´s Waldorf calendar is a good material to use in primary schools as the colours representates seasons and teacher can work time and changes of the Sun with the students. Besides, sundial points the sticks towards the North (shadows). It is important to use the real Sun for asking questions to our students and make them reflect about real facts.
After this introduction of useful materials that we can use in our future class of primary to teach the main concepts of the Universe, we have focused on the atmosphere topic.
The Atmosphere is a layer of the Earth which envelopes the Earth´s Surface. It is formed by gases: the main compund is the nytrogen. Ais is made of gases.
Another important concept that we have been studying today is the difference between weather and climate.

The composition of Earth changed because of the appearence of plants and bacterias which perform photosynthesis and reduce the amount of carbon dioxide. This element is important in our lives as it is an efficient absorber which incluences the temperatures of our planet.



To conclude this class, we have remained the importance of fossil fuels which are disappearing and they are no renovable.



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