| Term | Definition |
| viscosity | a liquid's resistance to flow |
| surface tension | tendency of a liquid to form a skin at the surface |
| cohesion | attraction between particles of the same substance |
| adhesion | attraction between particles of different substances |
| high cohesion = | high surface tension |
| malleable | solids which can be hammered into thin sheets |
| elasticity | ability of solids to return to orginal shape |
| brittleness | solids which are likely to break |
| hardness | ability of solids to resist being scratched |
| tensile strength | how well a solid resists breaking under tension |
| melting point | temperature at which a solid melts |
| freezing point | temperature at which a liquid freezes |
| boiling point | temperature at which a liquid boils |
| condensation | temperature at which a gas changes to a liquid |
| solubility | the ability to dissolve into another substance |
| color | color of a substance |
| size/shape | mass and volume |
| electrical conductivity | transfers electrical energy |
| thermal conductivity | transfers heat energy |
| density | amount of matter in a given space |
| ductile | ablity of a substance to be drawn into a thin wire |