Any change in matter that does not alter the composition of a substance is called a _______ change.

________ is the ability of a solid material to be pulled into a wire.

The ability of some solid materials to be hammered or pressed into sheets is called _________.

__________ is the ease with which a material allows the transfer of either electrical or thermal energy.

Physical _______ are helpful in identifying a particular substance and include color, texture, and physical state.

________ is the ability of a material to burn in the presence of oxygen.

Some changes alter the chemical composition of substances. Scientists call these chemical changes, or chemical _______.

_______ is the degree to which a material will react with other substances.

While matter changes all the time, the ________ of matter never changes.

Melting is the change of ______ from a solid to a liquid.

The melting point is the __________ at which a solid turns to a liquid.

_______ occurs in two different ways: through evaporation and through boiling

Dew forming on a cool summer night is an example of ____________.

Solid frost on the window of your car forms directly from a gas which bypasses the liquid state, in a process called _______.

The triple point is the temperature and _______ at which solid, liquid, and gas exist in equilibrium.

The change of state that is the opposite of melting is _______.

_________is the relatively slow form of vaporization in which particles on the surface of the liquid obtain sufficient energy to change to the gaseous state.

Condensation is the change of state from a vapor (gas) to a _______ and is the opposite of vaporization.

It is possible for a solid to transition directly to a vapor without melting first. This change is called _____.

Boiling of a liquid occurs wherever the gas pressure is ______ than atmospheric pressure.

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