CBSE Class 10th Science CBSE, science 16 Lessons 0 Free NCERT Solutions of Science Lessons Ch-1 Chemical Reactions and Equations Ch-2 Acids, Bases and Salts Metals and Non-metals Ch-4 Carbon and its Compounds Periodic Classification of Elements Ch-6 Life Processes Ch-7 Control and Coordination Ch-8 How Do Organisms Reproduce Ch-9 Heredity and Evolution Ch- 10 Light Reflection and Refraction Human Eye and Colourful World Electricity Magnetic Effects of Electric Current Sources of Energy Our Environment Management of Natural Resources