CBSE Class 4 Environmental Science Learn Science the easy and interesting way with Edurites class 4th Science CDs. Our CDs have been developed keeping the requirements of the CBSE curriculum in mind and they make learning the subject easy and interesting. Our Science CDs are completely mapped out to the class 4th Science syllabus and they serve as an excellent study guide for young students. Your child gets detailed chapter wise explanations along with interesting animations and a clear voice-over. Missed a topic in class? Get a synopsis of every chapter, a detailed glossary and easy learning techniques.