Study Chapter Details
NCERT Book Class 7 Science in Hindi – Changes Around Us: Physical and Chemical
The chapter "Changes Around Us: Physical and Chemical" in the NCERT Class 7 Science Book (Hindi Medium) helps students understand the different types of changes that occur in our surroundings. It explains how some changes are physical, where only the form or state of a substance changes, while others are chemical, where new substances are formed with different properties.
Students learn through simple examples — melting of ice, tearing of paper, rusting of iron, burning of wood, and cooking of food — to identify and differentiate between physical and chemical changes. The chapter also highlights reversible and irreversible changes, making the concept easy to visualize and understand.
Written in simple Hindi, this chapter encourages observation and reasoning, helping students connect science with real-life experiences and understand how changes are a natural part of everyday life.
