Matter exists in three fundamental states (solid, liquid and gaseous), which depend on the temperature and pressure to which the matter is subjected.
amorphous solidBody that resembles a congealed liquid whose atoms are not ordered.
gasMalleable and expandable matter whose only definable property is mass; its atoms are fully mobile with respect to each other.
crystallizationChange of a substance from an amorphous state to a crystallized state; it results from cooling, which causes the atoms to become ordered.
condensationChange of a substance from a gaseous state to a liquid state; it results from cooling.
evaporationChange of a substance from a liquid state to a gaseous state; it results from heating.
meltingChange of a substance from a solid state to a liquid state; it results from heating.
freezingChange of a substance from a liquid state to a solid state; it results from cooling.
sublimationChange of a substance from a solid state directly to a gaseous state without passing through the liquid state; it results from heating.
liquidMatter having a definite mass and volume but no shape; its atoms are relatively mobile in relation to each other. Change of a substance from a gaseous state to a liquid state; it results from cooling.
solidRigid body possessing mass, volume and a definite form; its atoms are linked to each other and are almost completely at rest.
supercoolingThe process of cooling a liquid below the point at which it normally freezes (solidifies); its atoms become unstable.
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