Advertisement Upgrade to remove ads


of definite shape and volume


a substance in the fluid state of matter having no fixed shape but a fixed volume


phase of matter that has no definite shape or volume


changing from a solid to a liquid


changing from liquid to solid


the change from a liquid to a gas


the changing of a gas into a liquid


change from a solid directly to a gas

melting point

the temperature at which a substance changes from a solid to a liquid

freezing point

the temperature at which a substance changes from a liquid to a solid

boiling point

the temperature at which a substance changes from a liquid to a gas

cohesive force

An attractive force between molecules of the same substance

absolute zero

The coldest temperature, 0 Kelvin, that can be reached. It is the hypothetical temperature at which all molecular motion stops.

Boyle's Law

The relationship between the pressure and volume of a gas at constant temperture; when volume increase, pressure decreases. Inverse

Charles' Law

the relationship between volume and temperature of a gas and constant pressure; when volume increases, the temperature increases. Direct.

Gay-Lussac's Law

The relationship between pressure and temperature of a gas; when pressure increases, temperature increases. Direct


Vaporization that occurs throughout a liquid


vaporization that takes place at the surface of a liquid

General Properties of Matter

mass, weight, and volume

Special Properties

used to differentiate one type of matter from another

Chemical Properties

describes how a substance changes into a new substance, either by combining with other elements or by breaking apart into new substances, includes reactivity and flammability

Physical Properties

characteristics of a substance that can be observed or measured without changing the substance into something else

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording