Physical Properties of Matter

The properties of a substance that can be demonstrated without changing the

composition of the substance

Size (length, volume)

Density

Mass

Color

Physical Properties

Melting Point

Ex. Ice (solid water) starts to melt to liquid water at 0 degrees Celsius

Boiling Point

Ex. Water boils into steam at 100 degrees Celsius

Physical Properties

Malleability: can be pounded into a new shape without breaking

Metals are malleable

Physical Properties

Iron is malleable

Fe

Physical Properties

Ductility

Can be pulled into long wires without breaking

Metals are ductile

Physical Properties

Crystal Shape

Reflects the regular arrangement of atoms in the solid

Physical ChangeA change in the sample of matter that does

not result in a NEW substance:

Phase Changes

Changes in shapeSolid liquid gas

Chemical Properties of Matter

How matter behaves when it changes into a NEW substance.

EX. Iron rusts silver tarnishes

Milk sours sugar ferments

eggs rot leaves turn

paper burns

Chemical Change

Substance changes into a NEW substance.

This change is often an irreversible and permanent change in composition

Burning

Tarnishing

Rusting

Oxidizing

Chemical Reaction

Chemical changes mean a chemical reaction has occurred

REACTANTS PRODUCTSold substances become new substances

Sodium + Chlorine sodium chloride (table salt)

Na + CL NaCL