Exercise 2A

Exercise 2B

Exercise 2C

Exercise 2D

Fibre to Fabric

Chemistry

Acids, Bases and Salts

Physical and Chemical Changes

Water: A Precious Resource

Class 7 Chemistry is an interesting subject which introduces students to new concepts and methods which occur in the branch of chemistry. It not only helps them gain knowledge but also makes them understand the daily happenings in real life. The chapter of Acids, Bases, and Salts carries a lot of importance. It helps students learn about the various types of acids, bases and salts that are there. Moreover, it will also assist students in identifying the types of substances as acidic or basic. Further, they will also learn about the types of indicators which are there. In addition, this chapter will show the similarities between these substances. Further, the chapter of Physical and Chemical Changes will help students in learning about the various types of changes that are there. This will not only help them learn more about the changes that occur in their surroundings but also assist in senior classes. After that, it also gives insight about the properties of these changes. Similarly, it will also teach them about the rusting of iron and the displacement reaction. Finally, students will also learn about the process of Crystallisation that can help them understand this method for future use in daily life.