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People depend upon the natural environment. But their activities may also do much harm
to the natural environment.
Find out activities in your locality and discuss how they may harm the natural environment.
Why is planet Earth called the ‘blue planet’?
Planet Earth is one of the planets of the solar system. It is the only known planet where life
exists and where there is water.
In this topic, you will explore the main features of the natural world outside your immediate
environment
Planet Earth needs to be protected and preserved. We have the responsibility to protect it
not only for us but also for the future generations. Therefore we need to act to make our world
sustainable.
At the end of this topic, you will be able to:
•realise that planet Earth is our home and we should protect it;
•name and locate on a world map the continents and oceans;
•recognise the main lines of latitude and longitude on a globe and on a world map;
•locate and name some main geographical features on maps of
i) the world
ii) Africa and Indian Ocean;
•inquire about the natural heritage sites of the world which have great environmental importance.
THINK
our natural environment
Topic 1 planet earth