| Term | Definition |
|---|---|
| atom | the smallest particle of matter the has the properties of that matter |
| matter | anything that has mass and takes up space |
| molecule | a single particle of matter made up of two or more atoms joined together chemically |
| physical property | a characteristic of matter that can be measured or observed without changing matter into a new substance |
| states of matter | the three forms that matter usually takes: solid, liquid, and gas |
| boiling point | the temperature at which a substance changes from a liquid to a gas |
| chemical property | the ability of a material to change its chemical makeup |
| conductivity | the ability of a material to carry energy |
| density | the mass per unit volume of a substance |
| melting point | the temperautre at which a substance changes from a solid to a liquid |
| solubility | the measure of how much of one substance can dissolve in another substance |
| condensation | the change of state from a gas to a liquid as energy is removed |
| deposition | the change of state from a gas to a solid |
| evaporation | the change of state from a liquid to a gas; slow or gradual vaporization |
| melting | the change of state from a solid to a liquid as energy is added |
| sublimation | the change of state from a solid to a gas |
| thermal expansion | an increase inthe size of a substance due to a change in temperature |
| vaporization | the change of state from a liquid to a gas as energy is added |
