General Science study notes
Free General Science notes for UPSC, SSC, banking and railway exams: every topic with the key facts, exam traps and a practice quiz. About 60minutes in all: read them in order, then take each topic's quiz to lock it in.
Physics in Everyday Life: Notes for UPSC, SSC & Railway Exams
Units, motion, pressure, heat, sound, light and household electricity. The everyday physics that SSC, RRB and UPSC prelims keep asking about.
Basic Chemistry: Notes for UPSC, SSC & Railway Exams
Acids, bases and pH, natural acids, chemical names of household compounds, metals and non-metals, alloys, corrosion and fuels. In one quick read.
Cell & Plant Biology: Notes for Railway, SSC & UPSC Exams
Class 6–10 life science in one read: cells and organelles, cell division, plant tissues, photosynthesis, plant hormones, reproduction and classification.
Human Body Systems: Notes for UPSC, SSC & Railway Exams
Body records, blood and blood groups, heart, digestion, kidneys, brain and hormones. The human-body facts that turn up in every general science paper.
Diseases, Vitamins & Nutrition: Notes for UPSC, SSC & Railway Exams
Vitamins and their deficiency diseases, minerals, malnutrition, diseases sorted by pathogen and vector, vaccines and medical milestones. Revision-ready.
Biotechnology: Notes for UPSC & SSC
DNA basics, the recombinant DNA toolkit, PCR, GM crops and their regulation in India, cloning, stem cells, CRISPR and DNA fingerprinting. Explained simply.
Computer & IT Basics: Notes for Railway, SSC & UPSC Exams
CPU and memory, storage units, binary numbers, input and output devices, software and translators, networks, internet protocols, abbreviations and cyber safety.
Space Technology & ISRO: Notes for UPSC, SSC & Railway Exams
ISRO's origins, launch sites, rockets, orbits and landmark missions. Aryabhata to Chandrayaan-3, Mangalyaan, Aditya-L1 and SpaDeX. In one read.
Nuclear Energy & India's Atomic Programme: Notes for UPSC & SSC
Fission and fusion, how a reactor works, Bhabha's three-stage plan, thorium, India's key reactors and institutions, and the Pokhran tests. Clearly explained.
Defence Technology: Notes for UPSC & SSC
DRDO, the IGMDP missile family, Agni and BrahMos, Mission Shakti and Divyastra, India's aircraft, carriers and submarines, and nuclear doctrine.