Unit 1 test Flashcards
mass
a measurement of the amount of matter an object contains
volume
a measure of space occupied by the object.
extensive property
a property that depends on the amount of matter in a sample.
intensive property
a property that depends on the type of matter in a sample no the amount.
substance
matter that has a uniform and definite composition.
physical property
a quality or condition of a substance that can be observed or measured without changing the substances composition
solid
a form of matter that has definite shape and volume (particles are packed tightly together)
liquid
a form of matter that has an indeifinite shape and flows but has a fixed volume (particles are free to flow)
gas
a form of matter that takes both the shape and volume of its container (particles are far apart)
physical change
some properties of a material change but the compostion of the material does not change.
mixture
physical blend of two or more components.
heterogeneous mixture
a mix in which the composition is not uniform throughout.
phase
term used to describe particles sample with uniform compostion and properties
homogeneous mixture
a mix in which the composition is uniform throughout.
filtration
process separating solid from liquid in hetero geneous mixture.