What is the SI unit of force?, Newton, Joule, Watt, Pascal, Which force pulls objects toward Earth?, Frictional force, Magnetic force, Gravitational force, Muscular force, What is the speed of an object at rest?, 10 m/s, 100 m/s, 1 m/s, 0 m/s, Which mirror is used in vehicles for rear view?, Plane mirror, Lens mirror, Convex mirror, Concave mirror, Which metal is liquid at room temperature?, Aluminium, Iron, Copper, Mercury, What is the chemical formula of water?, NaCl, H2O, CO2, O2, Which gas is released during photosynthesis?, Oxygen, Hydrogen, Carbon monoxide, Nitrogen, Which substance turns blue litmus red?, Acid, Salt, Water, Base, What is the pH of a neutral solution?, 5, 7, 3, 9, Which instrument is used to measure temperature?, Thermometer, Ammeter, Barometer, Voltmeter, What type of energy is stored in food?, Nuclear energy, Light energy, Chemical energy, Sound energy, Which force opposes motion between surfaces?, Gravity, Friction, Magnetism, Upthrust, What is the SI unit of work?, Newton, Pascal, Watt, Joule, Which state of matter has a fixed shape?, Solid, Gas, Plasma, Liquid, What happens to particles when heated?, Stop moving, Lose mass, Shrink in size, Move faster, Which process changes liquid into gas?, Freezing, Condensation, Evaporation, Melting, Which gas is most abundant in air?, Nitrogen, Oxygen, Carbon dioxide, Hydrogen, What is the main source of light on Earth?, Moon, Fire, Stars, Sun, Which material is a good conductor of electricity?, Plastic, Copper, Rubber, Wood, Which acid is present in lemon?, Citric acid, Nitric acid, Sulfuric acid, Hydrochloric acid, Which base is used in whitewashing?, Ammonium chloride, Copper sulfate, Calcium hydroxide, Sodium chloride, What is the smallest unit of an element?, Molecule, Atom, Tissue, Cell, Which subatomic particle has a positive charge?, Photon, Neutron, Electron, Proton, Which subatomic particle has no charge?, Proton, Ion, Neutron, Electron, What is the center of an atom called?, Orbit, Molecule, Shell, Nucleus, Which process forms rust on iron?, Corrosion, Filtration, Sublimation, Distillation, Which metal is commonly used in electric wires?, Iron, Copper, Lead, Tin, What kind of change forms a new substance?, Size change, Temporary change, Physical change, Chemical change, Which method separates sand from water?, Distillation, Evaporation, Filtration, Churning, Which method is used to get salt from seawater?, Sedimentation, Evaporation, Decantation, Filtration, What is the SI unit of pressure?, Pascal, Newton, Joule, Watt, Which force acts in magnets?, Frictional force, Muscular force, Magnetic force, Buoyant force, Which image is formed by a plane mirror?, Magnified image, Virtual image, Real image, Inverted image, What is the boiling point of water in Celsius?, 100°C, 212°C, 50°C, 0°C, Which gas is used in fire extinguishers?, Nitrogen, Hydrogen, Oxygen, Carbon dioxide

Basic Science Quiz – Class 8

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