Latest General Science articles & notes for all competitive exams.
Meristematic and permanent plant tissues, xylem and phloem, and the four animal tissues - epithelial, connective, muscular and nervous - in simple words with 15 previous year questions.
Male and female reproductive organs, sex hormones, the menstrual cycle, fertilisation, placenta, sex determination and reproductive health, in simple words with 15 previous year questions.
Radioactivity, alpha, beta and gamma rays, half-life and carbon dating, nuclear fission and fusion, reactor parts, and uses of isotopes, in simple words with 15 previous year questions.
Combustion, ignition temperature, the three zones of a flame, calorific value of fuels, LPG, CNG and biogas, and fire extinguishers, in simple words with 15 previous year questions.
What polymers are, the two kinds of plastic, common plastics and their uses, synthetic fibres like nylon and rayon, and plastics and the environment, in simple words with 15 PYQs.
The five groups of microbes, which ones make curd, bread and medicines, which ones cause disease, and how we keep food safe, in simple words with 15 previous year questions.
How the body fights germs, active and passive immunity, how a vaccine works, the scientists and years, and the vaccines in India's programme, in simple words with 15 PYQs.
The five plant hormones and what each one does, why shoots bend towards light, the types of tropism, and how plants make new plants, in simple words with 15 previous year questions.
Parts of the eye and what each does, accommodation and the near point, the four defects with their corrective lenses, rods and cones, and vitamin A, with 15 previous year questions.