| A | B |
| evaporation | vaportization that occurs at the surface of the liquid only |
| hydrogen | makes a popping sound in presence of flame |
| air | doesn't extinguish a flame, does not turn phenol red yellow |
| extrinsic | can be changed |
| submilation | phase change from solid to gas |
| condensation | phase change from gas to liquid |
| density | mass per unit of volume |
| homogeneous | type of mixture that appears the same throughout |
| liquid | solid that does not have a definite shape |
| general | properties that all matter have in common such as mass,volume, and density |
| submilation | phase change in which a gas is formed directly from a solid |
| hypothesis | a testable prediction based on previous knowledge |
| Particle Model for Matter | all matter is made up of tiny moving particles |
| indicator | indicates the presence of something by a color change |
| crystalline | type of solid to which salt would be classified |
| control setup | unchanged portion of experiment |
| mental model | uses imagination and reason to explain a series of observation or the behavior of things in nature |