However, I can provide you with some general guidance on how to approach finding keywords in a science book for Class 6.

When looking for keywords in a science book, it is important to understand the main topics and concepts covered in the book. Here are some steps you can follow to identify keywords effectively:

1. Skim the book: Begin by skimming through the book to get an overview of the content. Look for chapter titles, headings, subheadings, and any bold or highlighted text. These can often indicate important concepts or keywords.

2. Pay attention to definitions: Look for definitions of key terms within the book. These terms are often important keywords. They can be found in glossaries or highlighted within the text.

3. Identify important concepts: As you read through the book, make note of the main concepts discussed. These are usually the central ideas of each chapter or section. Highlight or write down these concepts as potential keywords.

4. Look for recurring themes: Some topics might be mentioned several times throughout the book. Identify these recurring themes and note down any associated keywords. This will help you grasp the core ideas of the subject.

5. Use the index: Most textbooks have an index at the back that lists important terms and their corresponding page numbers. This can be a valuable resource to quickly find relevant keywords related to specific topics.

Remember, the keywords you identify should reflect the main ideas and concepts presented in the book. They should help you understand and remember the content more effectively.

Overall, by skimming the book, paying attention to definitions, identifying important concepts, noting recurring themes, and utilizing the index, you can successfully identify keywords in a science book for Class 6.