NCERT Book Class 9 Science (Exploration) Chapter 1 Exploration: Entering the World of Secondary Science

Exploration: Entering Chapter
Exploration: Entering the World of Secondary Science 1

the World of
Secondary Science 1

In the middle stage, science invited you to be curious and observe the
world closely, to ask questions, and to find out how things work. In our
journey, we discovered that science began with wonder and grew through
careful experiments. We connected ideas across the world of the living and
non-living. As you now enter the secondary stage, this journey continues,
but with an emphasis on deep exploration. Science is not only about what
we know, but also about how we know it — how observations lead to
measurements, how patterns are expressed using symbols and equations,
how models are built to represent complex systems, and how ideas are
tested, often revised, and sometimes even discarded. In our secondary
stage, textbook of science, Exploration, we will look more closely, think
more carefully, and find out how scientific ideas help us make sense of
nature, technology and our place within them.
To reflect the approach of this textbook, the page numbers have
been thoughtfully designed, and are framed by a magnifying glass and a
compass. The magnifying glass symbolises careful observation — noticing
patterns and paying attention to what might otherwise be missed. The
compass reminds us that exploration also needs direction — choosing
appropriate models, asking the right questions, and knowing the limits of
where our ideas apply. Together, they tell us that exploration in science is
not wandering aimlessly, but trying to make sense of our world with care
and purpose.