| Term | Definition |
|
matter |
anything that has mass and takes up space |
|
states of matter |
solid, liquid, and gas |
|
plasma |
ionized gas consisting of positive ions and free electrons in proportions resulting in more or less no overall electric change |
|
property |
characteristic that describes matter |
|
physical property |
properties that can be observed without changing the matter into another kind of matter |
|
chemical property |
property that describes how one kind of matter changes into another form |
|
oxidation |
process in which minerals combine with oxygen to form new substances |
|
combustion |
the process of buring something |
|
elment |
substance that cannot be changed or separated into other kinds of substances |
|
atom |
smallest particle of an element that has characteristics of that element |
|
nucleus |
center of an atom which is made up of protons and neutrons |
|
electron |
moves around outside of nucleus and is negatively charged |
|
proton |
positively charged particle of an atom |
|
compound |
a substance formed when the atoms of two or more electrons join together chemically |
|
mixture |
two or more elements or compounds mixed together but not joined chemically |
|
molecule |
the smallest portion of a substance that has all the properties of that substance |