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Water
| Term | Definition |
|---|---|
| polar molecule | water has a negative and positive end |
| cohesion | water molecules attracted to other water molecules |
| Surface Tension | water molecules at the top of water have very strong attraction making a "sticky skin" at the surface |
| adhesion | water molecules are attracted to other polar molecules |
| universal solvent | water can dissolve many substances |
| capillary action | water molecules climb or move up substances like paper or the stems of plants |
| high specific heat | it take a lot of heat energy to increase the temperature of water |
| density | ice is LESS dense than water |
| states of matter | water is the ONLY substance on Earth that exists in all three states |
| solution | when one substance dissolves in another substance |
| solute | the substance that gets dissolved |
| solvent | the substance that does the dissolving |
| mechanical weathering | rock breaking into smaller pieces over a long period of time without changing the chemical makeup |
| chemical weathering | rock breaking down through chemical changes or reactions |
| evaporation | liquid water turns to water vapor(gas) |
| transpiration | plants lose water through their leaves |
| condensation | water vapor cools and turns back to liquid water, eventually forming clouds |
| precipitation | rain, sleet, snow, hail |
| runoff | water flows downhill and returns to oceans |
| groundwater | water trapped underground between rock or clay layers |
| water distribution | 97% is salt water; 2% glaciers and ice caps; 1% fresh water |