Dear students,
Welcome to Std IX. We have great pleasure in offering you this Science and Technology textbook based on the new syllabus.
From the Primary level till today, you have studied Science from various textbooks. From Std IX onwards, you will be able to study the fundamental concepts of Science and Technology from a different point of view through the medium of the different branches of Science.
The basic purpose of this textbook can be said to be to ‘Understand and explain to others’ the science and technology that relates to our everyday lives. While studying the concepts, principles, and theories in Science, do make the effort to understand their connection with day-to-day affairs. While studying from this textbook, use the sections ‘Can you recall?’ and ‘Can you tell?’ for revision. You will learn Science through the many activities given under the titles such as ‘Observe and discuss.’ and ‘Try this’ or ‘Let's try this’. Activities like ‘Use your brain power!’, ‘Research’, and ‘Think about it.' will stimulate your power of thinking.
Many experiments have been included in the textbook. Carry out these experiments yourself, following the given procedure and making your own observations. Ask your teachers, parents, or classmates for help whenever you need it. Interesting information that reveals the science underlying the events we commonly observe, and the technology developed on its basis, has been explained in this textbook through several activities. In this world of speed and technology, you have already become familiar with computers and mobile phones. While studying the textbook, make full and proper use of the devices of information communication technology, which will make your studies so much easier. While carrying out the given activities and experiments, take all precautions with regard to handling apparatus, chemicals, etc., and encourage others to take the same precautions. It is expected that while carrying out activities or observations involving plants and animals, you will also make efforts toward the conservation of the environment. You must, of course, take all care to avoid doing any harm or causing injury to any plants or animals.
Do tell us about the parts that you like as well as about the difficulties that you face as you read study and understand this textbook.
Our best wishes for your academic progress.
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