A characteristic of a substance that can only be seen when the substance changes and a new substance is formed; describes how matter reacts with other matter.
physical properties
A characteristic of a material or object that can be seen or measured without changing the material into a new substance.
metric system
A system of measurement in which the number of smaller parts in each unit is based on the number 10 and multiples of 10.
standard unit
A unit of measure that everyone agrees to use.
property
A characteristic that describes matter.
volume
The amount of space that matter takes up.
density
The property that describes how much matter is in a given space, or volume.
