Page 3 - Science Class 6 Times Publication

Preface

Human life is always in progress. Newer technologies and equipments have been
developed or discovered in every second. Lengthy and time consuming work of
past are now done within a few moments. People can travel far off distances within
short time. Several fatal diseases have been eradicated. These achievements, what
we are enjoying today, are the results of advancement in science and technology.
Hence, science has become an integral part of our education system.
Times’ Crucial Science & Environment is a series of text books for the school
level students of grades LKG to class ten. The series has been prepared for the
young learners emphasizing on student-centred teaching techniques, learning

circle based activities, practicable activities, scientic approaches and innovative
learning techniques. The text of each lesson is preceded by a warm up activity
that encourages students to take part actively in the learning process. The series
includes the teaching techniques and methods for the teachers under the title
’Note to the Teacher’. It is based on the latest syllabus prescribed by CDC
Government of Nepal. Hence, this series acts as the foundation of science for
the curious and inquisitive young minds.

Each book of this series covers the syllabus of Science & Environment. The  rst
part contains chapters of Science and the second part, chapters of Environment
Science. All the chapters of Science and Environment are provided with a wide
variety of exercises which encourage the students in learning and sharpening
their mind. A project work is asked at the end of each lesson so that student
can apply their knowledge to solve the problems of their day-to-day life. In
the beginning of each lesson, thought provoking questions are given under the
heading “Mind Openers”. This activity will compel students to use their brain.

We feel delighted to extend our sincere gratitude to Mr. Kamal Prasad Sapkota
for his painstaking contribution in editing the book and making it more simple
and crucial. We are equally thankful to the publishers Mr. Sunil Subedi without
whom this series would not have been possible in the present form. We are also
thankful to Mr. Surendra Nakarmi for providing this smart form to the book.
Constructive suggestions and recommendations from teachers, students and well
wishers for the further improvement of the books are welcome.

- Authors