There are a total of 9 chapters in the NCERT Social Studies (SST) textbook for Class 7. Here is a breakdown of each chapter:

Chapter 1: "On Equality"
- This chapter explores the concept of equality and discusses the various forms of inequality that exist in society.
- It also highlights the importance of equal rights and opportunities for all individuals.

Chapter 2: "Role of the Government in Health"
- This chapter focuses on the role of the government in providing healthcare facilities to its citizens.
- It discusses the importance of public health programs and the need for effective healthcare policies.

Chapter 3: "How the State Government Works"
- This chapter provides an overview of the functioning of the state government in India.
- It explains the roles and responsibilities of the Chief Minister, Members of Legislative Assembly, and other important aspects of state governance.

Chapter 4: "Growing up as Boys and Girls"
- This chapter addresses the issue of gender discrimination and the different expectations society places on boys and girls.
- It emphasizes the importance of equal opportunities and challenges gender stereotypes.

Chapter 5: "Women Change the World"
- This chapter highlights the contributions of women in various fields and their role in bringing about social change.
- It provides examples of women who have made significant achievements and encourages gender equality.

Chapter 6: "Understanding Media"
- This chapter introduces the concept of media and its influence on society.
- It discusses different forms of media, including print, television, radio, and the internet, and encourages critical thinking about media messages.

Chapter 7: "Understanding Advertising"
- This chapter explores the world of advertising and its impact on consumer behavior.
- It discusses the techniques used in advertising and encourages students to be critical consumers.

Chapter 8: "Markets Around Us"
- This chapter introduces the concept of markets and their role in the economy.
- It discusses different types of markets, such as local markets and global markets, and their impact on producers and consumers.

Chapter 9: "A Shirt in the Market"
- This chapter provides an in-depth understanding of the process of producing a shirt and brings attention to the various people involved in its production.
- It discusses the concept of supply and demand and the role of markets in determining prices.

These 9 chapters cover a wide range of topics related to social studies, including equality, government, gender, media, advertising, and markets. Each chapter aims to provide students with a holistic understanding of the subject and its relevance in their lives.