IPC Chapter 15: Classifications of Matter

All substances are built from _________.

• compounds

• oxygen

• metals

• atoms

A(n) ___________ is a homogeneous mixture of particles so small they cannot be seen

without microscopes and will never settle to the bottom of their container.

• solution

• element

• molecule

• plasma

A(n) _______________ is a mixture that settles upon standing.

• solution

• colloid

• suspension

• element

A(n) ____________ is a mixture made of larger particles that never settle.

• solution

• colloid

• suspension

• element

Any characteristic of a material that you can observe without changing the identity of the substances that make the material is a(n) ____________.

• physical property

• chemical property

• invisible property

• none of these

A change in size, shape, or state of matter is called a(n) ____________ change.

• physical

• chemical

• atomic

• impossible

The process for separating substances in a mixture by evaporating a liquid and re-condensing its vapor is called ____________.

• precipitation

• sifting

• distribution

• distillation

A(n) ___________ is NOT homogeneous.

• suspension

• element

• compound

• solution

The scattering of light by colloids is called ____________.

• the Tyndall effect

• conservation

• air pollution

• suspension

Three examples of physical changes are ____________.

• freezing of water, evaporation of gasoline, and rusting of a nail

• boiling of water, bursting of a balloon, and melting of a candle

• sawing of wood, crushing of a can, and toasting a marshmallow

• burning of gasoline, rotting of an egg, and exploding of fireworks