Page 243 - New Medley 3 Semester 1
P. 243
Competencies
C-1.1
• Critical thinking
• Environmental literacy
21st CENTURY SKILLS
3 The Neighbours of the Earth
Warm Up
If you were an astronaut, which neighbour of the Earth would you
like to visit first: the Moon or another planet? Why?
Our Earth is not alone in the sky. There are other heavenly bodies too.
They are the sun, the moon, planets, stars and some other things. We
see the sun during the day and the moon and stars, during the night.
The Sun
The sun is a star. It is at the centre
of the solar system. All the planets
including our Earth circle the sun.
The sun is a big ball of fire. It is
made of very hot gases. It gives us
heat, light and energy. The heat of
the sun keeps us warm. The day is
lighted up with sunlight. Plants use
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