NCERT Class 4 EVS Chapter 12 Changing Times Worksheet

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Are you curious about the materials used in constructing houses and buildings? Do you want to learn about the importance of toilets in our daily lives? Are you interested in discovering how construction practices have transformed throughout the years?

Look no further than CBSE Class 4 EVS Chapter 12 - Changing Times. This captivating chapter delves into the fascinating world of construction, providing insights into the materials employed, the significance of toilets, and how construction techniques have evolved over time. Moreover, it offers a glimpse into the lives of construction workers, shedding light on their responsibilities and contributions. Join us on this educational journey as we explore the captivating realm of construction and expand our knowledge of the changing times.

CBSE Class 4 EVS Chapter 12 Changing Times describes the materials used during the construction of houses and buildings, toilets and their importance, and gives a brief idea of how construction works have changed over the years. The chapter Changing Times Class 4 EVS also provides an opportunity for the students to know about construction workers and their responsibilities.

Overview of Chapter 12: Changing Times

Chapter 12 of Class 4 EVS, titled "Changing Times," is a comprehensive exploration of the materials used in construction, the importance of toilets, and the evolution of construction practices. It provides students with an understanding of the changing techniques and processes involved in creating houses and buildings. The chapter also sheds light on the responsibilities of construction workers and their contributions to shaping our built environment.

Learning Objectives of the Chapter

The main learning objectives of Chapter 12 are:

  1. To familiarize students with the materials used in construction.
  2. To understand the importance of toilets and their role in maintaining hygiene.
  3. To learn about the changes in construction practices over time.
  4. To recognize the contributions of construction workers in shaping our surroundings.

Summary of the Chapter

In this chapter, students will learn about the different materials used in construction and how they have evolved over time. They will also understand the importance of toilets and the need for proper sanitation practices. The chapter highlights the responsibilities of construction workers and their skilled labor in constructing houses and buildings. Students will gain insights into how construction practices have changed over the years and the impact these changes have on our daily lives.

Key Concepts and Vocabulary

Key concepts covered in this chapter include:

  1. Construction materials: Students will learn about various construction materials, such as bricks, cement, and steel.
  2. Toilets and hygiene: The chapter emphasizes the importance of toilets in maintaining hygiene and preventing the spread of diseases.
  3. Construction practices: Students will explore how construction techniques and processes have changed over time.
  4. Construction workers: The chapter introduces the roles and responsibilities of construction workers in building houses and buildings.

Vocabulary words that students will encounter in the chapter include construction, materials, toilets, hygiene, workers, bricks, cement, and steel.

Class 4 EVS Chapter 12 Changing Times Worksheet

The worksheet for Class 4 EVS Chapter 12 covers various exercises related to the topics covered in the chapter. It includes questions that test students' understanding of construction materials, the importance of toilets, and the responsibilities of construction workers. The worksheet encourages students to think critically and apply their knowledge to real-life scenarios.

Additional Resources for Further Learning

To further enhance their understanding and knowledge, students can explore additional resources related to construction and hygiene. These resources can include books, online articles, videos, and interactive websites. They can provide more in-depth information about construction materials, sustainable building practices, and the importance of sanitation in our daily lives.


Chapter 12 of Class 4 EVS, Changing Times, offers a comprehensive exploration of construction materials, toilets, and changes in construction practices. By engaging with this chapter, students will develop a solid understanding of these topics and their significance in our lives. The chapter promotes critical thinking, encourages students to recognize the contributions of construction workers, and fosters an appreciation for the built environment. Through supplementary resources and the accompanying worksheet, students can further enhance their knowledge and explore these concepts in more depth. By the end of this chapter, students will have gained valuable insights into the changing times in construction and the importance of maintaining hygiene.

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