Science (Class 9) Study Materials

States of matter, particles, density, solutions, suspensions, colloids, and mixtures.

Dalton's atomic theory, atomic mass, molecular mass, mole concept, and chemical formulas.

Thomson, Rutherford, Bohr models; electrons, protons, neutrons; valency and atomic number.

Cell theory, cell organelles, differences between plant and animal cells, and cell division.

Plant tissues (meristematic, permanent) and animal tissues (epithelial, muscular, nervous, connective).

Uniform and non-uniform motion, speed, velocity, acceleration, equations of motion, and graphs.

Newton's three laws, inertia, momentum, conservation of momentum, and friction.

Universal law of gravitation, acceleration due to gravity, weight, mass, and free fall.

Work done by a force, kinetic and potential energy, conservation of energy, and power.

Production and propagation of sound, frequency, amplitude, reflection, echo, and ultrasound.

Air, water, soil — their importance, pollution, depletion, and conservation.

Crop improvement, crop production management, animal husbandry, and plant diseases.