Hard Words of Class 6th Science Chapter 3: Separation of Substances
- Decantation: The process of separating a liquid from a solid by carefully pouring off the liquid without disturbing the solid settled at the bottom.
- Centrifugation: A technique used to separate substances of different densities using a centrifuge that spins rapidly to separate the components.
- Filtration: The process of separating solids from liquids using a filter paper or sieve to trap the solid particles.
- Evaporation: The process of converting a liquid into vapor by heating, resulting in the separation of the liquid from dissolved solids.
- Distillation: A method of separating mixtures based on differences in boiling points, where the liquid is heated to its boiling point and then condensed back into liquid form.
- Chromatography: A technique used to separate components of a mixture based on their different abilities to be carried by a solvent along a stationary medium.
- Sedimentation: The process of allowing solid particles to settle at the bottom of a liquid, enabling easy separation of the two components.
- Sublimation: The conversion of a solid directly into vapor without passing through the liquid state, allowing the separation of substances based on this property.
- Magnetism: The property of certain materials to attract or repel other materials based on their magnetic properties, used for separation in some cases.
- Crystallization: The process of forming crystals from a solution, where the solute is separated from the solvent by solidifying into crystals.
These hard words are essential in understanding the various methods of separating substances in science. By grasping the meaning and application of these terms, students can effectively carry out experiments and understand the principles behind the separation techniques taught in class.