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Science List 4

Properties of Matter

TermDefinition
atom the smallest particle of an element that still retains the properties of the element.
boiling point the temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid.
chemical property any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change.
chemical reaction/chemical change process in which one or more substances are changed into new substances.
physical property any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material.
physical change any change in size, shape, or state of matter in which the identity of the substance remains the same.
solid Has a stable, definite shape •Has a definite volume •Particles are packed closely together •Cannot move freely, can only vibrate •Energy and temperature are very low •Can only change their shape by force
liquid •Does not have a definite shape •Shape is determined by the container in which it is held •Volume is definite •Particles are farther apart than in solids, and can slide past each other easily
gas •Has an indefinite, unstable shape •Volume is determined by the container that is closely sealed •Particles are far apart from each other, and can move around quickly •Energy and temperature are the higher than those of both solids and liquids
plasma •Hotter than gas • occurs when the temperature is between 1000 degrees C and 1,000,000,000 degrees C •Charged particles, usually in equal numbers, such as ions and electron
sublimation the process of a solid changing directly to a vapor without forming a liquid.
vaporization transition from the liquid phase to vapor
condensation process in which water vapor changes to a liquid.
evaporation process that takes place when a liquid changes to a gas.
Created by: MsKovalcik