PHYSICAL AND CHEMICAL PROPERTIES AND CHANGES

physical and chemical properties and changes

PHYSICAL

CHEMICAL

property

change

property

change

characteristic of a substance: color, density, shape, size, odor, luster, melting point.

characteristic that indicates the ability of a substance to form another substance: paper can burn, iron can rust, silver can tarnish.

change in a physical property that retains the identity of the substance: a change of state, change in size, or a change in shape.

change in which the original substance is converted to one or more new substances: paper burns, iron rusts, silver tarnishes

Ex: neon is a colorless gas at room temperature

Ex: A tree is cut into boards at a saw mill

Ex: apple slices turn brown when they are exposed to air

Ex: A silver pin tarnishes in the air