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Unit1-Topic3
Vocan-Water
| Vocabulary | Term |
|---|---|
| Adhesion | The attraction between water molecules and different substances |
| Cohesion | The attraction between molecules of the same substance |
| Polar molecule | A molecule with an uneven distribution of charge |
| Hydrogen bond | A weak attraction between a slightly positive hydrogen atom and a slightly negative atom |
| Surface tension | A measure of how difficult it is to stretch or break the surface of a liquid |
| Capillary action | The ability of a liquid to flow in narrow spaces against gravity |
| Specific heat capacity | The amount of a heat required too raise the temperature of 1 gram of a substance by 1'c |
| Expansion upon freezing | Water expands when it freezes, making ice less dense than liquid water so it floats |
| Universal solvent | water's ability to dissolve many different substances due to its polarity |