Classification of Matter

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 a can, and toasting a marshmellow

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

When two or more substances are combined so that each substance maintains its own properties, the result is a (n)

• chemical change

• element

• compound

• mixture

_________ is another name for a homogeneous mixture.

• Suspension

• Substance

• Solution

• Liquid

A (n) ________ is NOT homogeneous.

• suspension

• element

• compound

• solution

Smoke is an example of a _________.

• substance

• solution

• colloid

• suspension

The color of ink is a ________.

• chemical property

• physical property

• chemical change

• physical change

When gasoline is burned in an engine, __________.

• gasoline evaporates

• new substances are formed

• mass is lost

• mass is gained

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

True or False:

Substances are either elements or mixtures.

• True

• False

True or False:

Smoke is a compound.

• True

• False

Tags

NGSS.MS-PS1-1