Science Class 8 | Sound, Light, Age of Adolescence, Chemical effects of Current | Exam Express

🔰 Class 8th channel on WhatsApp: 👉 https://whatsapp.com/channel/0029Vb9q... In this Exam Express session, we revise Class 8 Science important chapters — Sound, Light, Adolescence (Reaching the Age of Adolescence), and Chemical Effects of Electric Current — in a clear, quick, and exam-oriented way. This video is perfect for last-minute revision, concept clarity, and scoring high marks in school exams. ✅ What you will learn in this video: 👉 Sound: vibration, amplitude, frequency, and loudness 👉 Light: reflection, laws of reflection, images, and dispersion 👉 Adolescence: physical & hormonal changes, puberty, and health 👉 Chemical Effects of Electric Current: electroplating and applications 🎯 Exam Express Class 8th 👉 https://physicswallah.onelink.me/ZAZB... 🎯 Rapid Revision Class 8th 👉 https://physicswallah.onelink.me/ZAZB... #Class8Science #ExamExpress #NCERTClass8 #ScienceRevision #CBSEClass8 #Class8ExamPreparation #ScienceOneShot