Phase change - a special type of physical change in which a substance transitions among the states of matter, solid, liquid, and gas, but the chemical properties of the substance remain the same. Mixture - a combination of two or more pure substances in which each pure substance retains its individual chemical properties. Melting point - the temperature at which a solid turns into a liquid. Melting - when a solid turns into a liquid. Matter - anything that has mass and takes up space. Malleability - how readily a material's shape can be changed. Intermolecular force - any force that can hold or repel particles. Homogeneous mixture - a combination of two or more substances that have uniform composition and chemical properties throughout also known as a solution. Heterogeneous mixture - a combination of two or more substances in which the original substances are separated into physical distinct regions. Whereas, rusting on iron, digestion of food in our body, electrolysis of water are examples of chemical change.Alloy - a homogeneous mixture of metals, or a mixture of a metal and a non-metal in which the metal is the major component.īrittleness - a material's ability to absorb energy before fracturing.Ĭhemical change - any change that results in the formation of a new chemical substance.Ĭhemical property - a characteristic of a substance that's observed during a chemical reaction.Ĭhromatography - parts of a mixture are separated based on the ability of each dissolved component to travel through materials at different speeds.Ĭombustibility - occurs when a material catches fire at a temperature above 43 degrees celcius.Ĭompound - any substance formed from two or more elements that have been joined together chemically.Ĭondensation - the phase change that occurs when water vapor cools down to form liquid water.Ĭondensation point - the temperature at which a gas turns into a liquid at standard pressure.Ĭrystallization - the separation of a pure solid substance from a solution containing the dissolved substance.ĭensity - the amount of mass per unit volume.ĭeposition - when a gas changes directly into a solid without going through the liquid phase.ĭistillation - the process that separates homogenous mixtures based on the different boiling points of the substances.Įnthalpy - the amount of heat in a system at constant pressure.Įvaporation - occurs on the surface of a liquid as it changes into a gas.įiltration - a physical process used to separate solids from liquids by passing them through a barrier.įlammability - occurs when a material catches fire at a temperature below 43 degrees celcius.įreezing - when a liquid turns into a solid.įreezing point - the temperature at which a liquid turns into a solid. Preparing smoothie or boiling water would be an example of physical change. In chemical change, since new compounds are formed, only chemical method can be applied to obtain original substances. In physical change original substances can be separated or recovered applying some physical methods like filtration, distillation etc. A substance reacting ability is defined by chemical properties.Ī physical change alters a substance’s shape, state without changing its original composition. A Chemical change or a chemical reaction converts one materials to another and therefore a totally new substance is formed with its own new properties and structures. Chemical properties are those that determines how a substance can be converted to another substance. Physical properties are determined by a substance’s outside appearance. Physical Properties are those that can be observed or measured without changing the composition of the materials. Physical and Chemical Properties and Change
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