There are several online assessments and quizzes available for the topics covered in the SST (Social Science) textbook for Class 7. These assessments and quizzes are designed to test the students' understanding of the concepts and help them reinforce their learning. Here are some details about these online resources:

1. EduRev:
- EduRev is a platform that offers a wide range of educational resources, including assessments and quizzes for various subjects, including SST for Class 7.
- They have a dedicated section for Class 7 SST, where students can find chapter-wise assessments and quizzes.
- These assessments and quizzes are designed to cover the topics and concepts discussed in the SST textbook.
- Students can access these resources for free on the EduRev website.

2. Chapter-wise Assessments:
- The online assessments available for the SST textbook cover each chapter in detail.
- These assessments consist of multiple-choice questions, fill in the blanks, and short answer questions.
- They test the students' knowledge of the key concepts, events, and theories discussed in each chapter.
- The assessments provide instant feedback and scores to help students track their progress and identify areas for improvement.

3. Quizzes:
- The quizzes available for the SST textbook are interactive and engaging.
- They are designed to test the students' understanding of the concepts in a fun and interactive way.
- These quizzes include multiple-choice questions, true/false statements, and matching exercises.
- Students can take these quizzes online and receive immediate feedback on their performance.

4. Topic-wise Assessments:
- Apart from chapter-wise assessments, there are also topic-wise assessments available for the SST textbook.
- These assessments cover specific topics or themes within each chapter.
- They help students focus on specific areas of study and reinforce their understanding of the key concepts.
- The topic-wise assessments also provide detailed explanations for each question, allowing students to learn from their mistakes.

In conclusion, there are various online assessments and quizzes available for the topics covered in the SST textbook for Class 7. These resources, such as those provided by EduRev, help students test their knowledge and understanding of the subject matter, while also providing instant feedback and explanations to aid in their learning journey.