The greenhouse effect

For the Science, Social Science and Environment Science Teachers
   
ACTIVITY PLAN:

•    Introduce the students to climate change

•    Ask the students -Why is there climate change today?
                                    How is this climate change so different?

•    Put the key points on the board.

•    Ask them to name the greenhouse gases

•    Introduce the concept of greenhouse effect( with a diagram of the earth)

The following discussion statements could be taken up:

•    I am worried about climate change

•    Climate change is the most serious threat on the earth

•    We can do nothing to resolve climate change

•    People just worry, the earth can take care of itself

•    Humans need to take care and conserve

•    Everyone should do whatever they can to save energy

Definitions:
Climate change: The earth’s climate keeps on changing but it is believed that the extreme changes taking place today are a result of human activity .This may affect the stability of the earth’s climate and all forms of life.

Greenhouse effect: The earth acts as a greenhouse as gases like carbon dioxide,
methane and nitrous oxides etc trap the sun’s heat and moderate the temperature on earth. Increase in concentration of these gases leads to global warming

Evidences of global warming: Rise in temperatures by 0.6 C and rise of sea levels by 10-20 cm due to the expansion of warming oceans.


Make a classroom display of the earth yesterday and today-
Bring out the multicolor of nature yesterday and the black and white of the urban environment today