Yes, there are online resources available for CBSE Class 7 exam preparation. These resources can help students enhance their understanding of various subjects and topics covered in the CBSE curriculum. Here are some of the key online resources:

1. NCERT Official Website:
- The NCERT (National Council of Educational Research and Training) website provides textbooks, supplementary reading materials, sample papers, and other study resources for Class 7 subjects.
- Students can access the NCERT books and solutions in PDF format, which can be helpful for self-study and revision.

2. EduRev:
- EduRev is an online learning platform that offers a wide range of study materials, including video lectures, notes, sample papers, and practice questions for CBSE Class 7.
- Students can access subject-wise study materials and can choose from a variety of resources to suit their learning style and requirements.
- EduRev also has a community of students and teachers who can help with doubts and provide additional guidance.

3. Online Tutoring Platforms:
- There are several online tutoring platforms that offer personalized coaching and support for CBSE Class 7 students.
- These platforms provide one-on-one or group tutoring sessions with experienced teachers who can explain concepts, solve problems, and provide guidance for exam preparation.
- Some platforms also offer recorded video lessons and practice quizzes for self-paced learning.

4. YouTube Channels:
- There are numerous educational YouTube channels that offer video lessons, tutorials, and explanations for CBSE Class 7 subjects.
- Students can subscribe to these channels and access a wide range of content created by knowledgeable teachers.
- YouTube can be a valuable resource for visual learners, as it provides engaging and interactive video lessons.

5. Mobile Apps:
- There are several mobile apps available for CBSE Class 7 exam preparation.
- These apps provide access to study materials, quizzes, mock tests, and interactive learning resources.
- Students can download these apps on their smartphones or tablets and study on the go.

Overall, these online resources can supplement traditional classroom learning and help students prepare for their CBSE Class 7 exams effectively. It is important for students to choose reliable and credible sources for their study materials and seek guidance from teachers or parents when needed.