| A | B |
|---|
| Pressure | the force exerted on a unit area of a surface |
| Viscosity | the resistance of a fluid to flow |
| energy | the ability to change or move matter |
| evaporation | the change of a substance from a liquid to a gas |
| condensation | the change of a substance from a gas to a liquid |
| sublimation | the change of a substance from a solid to a gas |
| chemical property | a substance reacts with others to form new substance with different properties |
| reactivity | the ability of a substance to combine chemically with another substance |
| physical property | can be observed or measured without changing the composition of the substance |
| melting point | temperature at which a solid becomes a liquid |
| boiling point | temperature at which a liquid becomes a gas |
| density | mass per unit volume of a substance |
| buoyancy | force wiht which a more dense fluid pushes a less dense substance upward |
| chemical change | occurs when a substance changes composition by forming 1 or more new substances |
| physical change | changes physical form or properties without a change in composition |
