Class 7 Science Chapter 7, Heat Transfer in Nature, begins on a winter evening in Gangtok as siblings compare Sikkim’s cold climate with warm Kerala and watch thukpa cooking. It explains conduction, convection, radiation, land and sea breezes, and the water cycle with groundwater seepage. What Class 7 Science Chapter 7 Covers 7.1 Conduction of … Read more
Class 7 Science Chapter 8, Measurement of Time and Motion, follows 100-metre sprinter Prerna as she wonders how races are timed to fractions of a second. It covers ancient timekeeping devices, simple pendulums, SI units, speed calculations, and uniform vs non-uniform linear motion. What Class 7 Science Chapter 8 Covers 8.1 Measurement of Time traces … Read more
Class 7 Science Chapter 9, Life Processes in Animals, explores the two core life processes that fuel animal survival—nutrition (how food is taken in, digested, absorbed and assimilated) and respiration (how breathing and cellular respiration release energy from food). What Class 7 Science Chapter 9 Covers 9.1 Nutrition in Animals traces human digestion through the … Read more
Class 7 Science Chapter 10, Life Processes in Plants, investigates how plants make their own food, exchange gases, transport water, minerals and food through vascular tissues, and respire day and night to release energy for growth. What Class 7 Science Chapter 10 Covers 10.1–10.2 How Plants Grow & Get Food (Photosynthesis) tests the conditions essential … Read more
Class 7 Science Chapter 11, Light: Shadows and Reflections, begins with Keshav watching fireflies and headlight beams in the Western Ghats. It explores luminous and non-luminous objects, rectilinear propagation of light, shadow formation, reflection by plane mirrors, pinhole cameras, periscopes and kaleidoscopes. What Class 7 Science Chapter 11 Covers 11.1–11.4 Sources of Light, Straight-Line Travel … Read more