General Science Topics

For a freely falling body in a vacuum, potential energy converts to kinetic energy, but the Total Mechanical Energy (Sum of PE and KE) remains constant due to the law of conservation of energy.

Temporary hardness of water is caused by the presence of dissolved bicarbonates of calcium and magnesium, which can be removed simply by boiling.

Lysosomes contain digestive enzymes. If a cell is damaged, lysosomes burst and digest their own cell, which is why they are called suicide bags.

NavIC (Navigation with Indian Constellation), originally called IRNSS, is an independent regional navigation satellite system developed by ISRO.

Bioaccumulation is the gradual accumulation of substances, such as pesticides or other chemicals, in an individual organism over time from its environment.

An air bubble inside water has a convex shape, but because air has a lower refractive index than water, it causes light rays to diverge, acting as a diverging or concave lens.

Tomatoes naturally contain oxalic acid alongside citric and malic acids. Oxalic acid is also known for forming calcium oxalate crystals in kidney stones.

Vitamin K is a fat-soluble vitamin essential for the synthesis of prothrombin and other clotting factors required for blood coagulation.

When the skater pulls their arms inward, their moment of inertia decreases. Because external torque is zero, the Law of Conservation of Angular Momentum dictates that their angular velocity must increase.

Vulcanization involves heating natural rubber with sulphur. This forms cross-links between polymer chains, which significantly improves its strength, elasticity, and durability.