CBSE Class 8 Science — Chapter Summaries

Science begins with wonder, careful observation, and questions that lead to investigation. This chapter connects curiosity with the scientific method by showing how scientists ask focused questions, plan simple experiments, observe carefully, and draw conclusions. It also introduces important scienc…

Tiny living beings exist all around us in water, soil, air, food, and even inside the body. Many of them cannot be seen with the naked eye, so microscopes are used to study them. The chapter explains how cells were discovered, how living beings are built from cells, and how microorganisms can be use…

Health means complete physical, mental, and social well-being, not just the absence of disease. A healthy person can work efficiently, cope with difficult situations, and adjust well in social life. Good health depends on healthy habits, a clean environment, proper nutrition, enough rest, and emotio…