| A | B |
|---|
| polar molecule | A molecule that has electrically charged areas. |
| The positive hydrogen ends of one water molecule attract | the negative oxygen ends of nearby water molecules. As a result, the water molecules tend to stick together. |
| surface tension | The tightness across the surface of water that is caused by the polar molecules pulling on each other. |
| capillary action | The combined force of attraction among water molecules and with the molecules of surrounding materials |
| solution | A mixture that forms when one substance dissolves another. |
| solvent | A substance that dissolves another substance, forming a solution. |
| One reason that water is able to dissolve many substances is that it is | polar. |
| evaporation | The process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state. |
| condensation | The process by which a gas changes to a liquid |
| specific heat | The amount of heat needed to increase the temperature of a certain mass of substance by 1°C. |
| suspension | A mixture in which particles can be seen and easily separated by settling or filtration. |
| solute | The part of a solution present in a lesser amount and dissolved by the solvent. |
| colloid | A mixture with small undissolved particles that do not settle out. |
| freezing point | The temperature at which a substance changes from a liquid to a solid |
| boiling point | The temperature at which a substance changes from a liquid to a gas. |
