2 VOCABULARY STATE CHANGES CLASSIFYING MATTER SEPARATING METHODS VaporizationEvaporationBoiling (also called ebullition)CondensationBoiling point FreezingMeltingMelting pointSublimationDepositionPure substanceMixtureHomogeneous mixtureHeterogeneous mixtureCompoundSimple substanceSievingMagnetizationFilteringDecantingCrystallizationDistillationSTATE CHANGESCLASSIFYING MATTERSEPARATING METHODS
3 MATERIA Aquello que tiene masa y ocupa un espacio FUNDAMENTALES presentaPROPIEDADES CUANTITATIVAS o MAGNITUDES FÍSICASPROPIEDADES CUALITATIVASpueden serNo dependen de otras:Longitud (m)Masa (kg)Tiempo (s)Temperatura (K)se puedenNo permiten identificarlasNo se pueden medirComparar con un patrónDERIVADASesMEDIRGENERALESESPECÍFICASde formaDependen de tras: velocidad (m/s)Densidad (kg/m3)DIRECTAINDIRECTANo identifican la sustancia:Temperatura/masa/volumen/Superficie (etc.)Sí la identifican: densidad/ PF / PE/Con un instrumento: longitud/tiempo/Velocidad/etc.A partir de una fórmula: volumen/superficie
4 STATES OF MATTER GAS LIQUID SOLID Matter is made up of tiny particles are explained bySTATES OF MATTERMatter is made up of tiny particlesEach particle is in constant motionKINETIC THEORYdepositioncondensationfreezingGASLIQUIDSOLIDmeltingvaporizationsublimationEstados FísicosCharacteristics of states physics
6 VOCABULARY: STATE CHANGES Vaporization: is the state change from liquid to gas.Evaporation: is the state change from liquid to gas. It happens at room temperature and only on the surface of the liquid. The rate of evaporation increases when the temperature increases.Boiling (also called ebullition): is the state change from liquid to gas at a constant temperature. All the liquid changes state and while it happens, the temperature doesn’t change.Condensation: is the state change from gas to liquid.Boiling point: is the temperature at which a liquid boils. It is different for each substance.Boiling point = Condensing point
7 VOCABULARY: STATE CHANGES Freezing: Is the state change from liquid to solid.Melting: Is the state change from solid to liquid.Melting point: Is the temperature at which a solid turns into a liquid. It is different for each substance.Melting point = Freezing pointSublimation: Is the transition from solid to gas.Deposition: Is the state change from gas to solid.
8 HETEROGENEOUS MIXTURES Are made up by two or more substances at not fixed proportionsThey can be separated by physical methodsMATTERA sample of matter that consists of only one component.PURES SUBSTANCESMIXTURESHOMOGENEOUS MIXTURESHETEROGENEOUS MIXTURESCOMPOUNDSSIMPLE SUBSTANCESThey are made up by two or more elements combined in a fixed proportionThe properties of a compound are completely different that their elements.We can break down by chemical meansThey have uniform compositionand propertiesthroughoutWe cannot see their components with a naked eyeThey do not have uniform composition and properties throughoutWe can see their componentsThey are made up by atoms of the same elementWe cannot break down in any way
15 VOCABULARY: SEPARATING METHODS Sieving: Consists of separating larger pieces of something from smaller pieces.Magnetization: separating a substance, like iron, using a magnet.Filtering: method of separation that is used for separating insoluble solids from liquids.Decanting: consists of separating two immiscible liquids of different densities.Crystallization: Process that consists of obtain a solid dissolved in a liquid by evaporation of liquid.Distillation: is a method of separating substances based on differences in their boiling points. This method is used to separate a liquid from the solution. The other components can be solids or liquids.