| A | B |
|---|
| polar molecule | has electrically charged areas |
| H2O | chemical formula for water |
| surface tension | tightness across the surface of water |
| capillary action | combined force of attraction among water molecules and with the molecules of surrounding materials |
| solution | a mixture that forms when one substance dissolves in another |
| evaporation | molecules change from liquid to gas |
| condensation | molecules change from gas to liquid |
| specific heat | the amount of heat needed to increase the temperature of a certain mass of a substance by 1degree C. |
| suspension | a mixture in which particles can be seen and easily separated by settling or filtration |
| solute | a substance that is dissolved by the solvent |
| solvent | the substance in a solution that does the dissolving |
| saturated solution | one that contains the maximum amount of solute |
| colloid | a mixture with small, undissolved particles that do not settle outand can scatter a beam of light |
| freezing point | the temperature at which a substance freezes |
| solutes lower the freezing point of solvents because | they make it harder to form crystals |
| weathering | process of breaking down rock and other substances at the earth's surface |
| erosion | the movement of rock particles or soil by wind, water,ice, or gravity |
| permeable | capable of passing through |
