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The Water Planet
heres some notes
| Term | Definition |
|---|---|
| Water Uses | household purposes, agriculture, industry, transportation and recreation |
| Irrigation | the process of supplying water to areas of land to make them suitable for growing crops |
| Water & Living | water is essential for living things to grow, reproduce, and carry out other important process |
| Photosynthesis | plants making food from using the energy in sun, water and carbon dioxide (CO2) |
| Water distribution | 97% salt water, 3 % fresh water |
| Water vapor | gaseous form of water |
| Groundwater | water that fills the cracks and spaces in underground soil and rock layers |
| Polar molecule | a molecule that has electrically charged areas; for example: water |
| Surface tension | the tightness across the surface of water that is caused by the polar molecules pulling on each other |
| 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 another substance |
| Solvent | the substance that does the dissolving in a solution |
| Solute | the substance that gets dissolved in a solution |
| Universal solvent | water is called this because it is a polar substance that can dissolve most substances |
| Hydrophobic | water fearing; nonpolar molecules; does not like to mix with water; for example: oil |
| Hydrophilic | water loving; polar molecules; likes to mix with water; for example: sugar |
| Specific heat | the amount of heat needed to increase the temperature of a certain mass of a substance by 1˚C (water has a high specific heat; requires a lot of heat to warm it up) |
| Water cycle | the continuous process by which water moves through the living and nonliving parts of the environment; this process is driven by the sun’s energy |
| Transpiration | the process by which plants release water vapor through their leaves |
| Cloud formation | form as water vapor cools and condenses on tiny dust particles in the air |
| Precipitation | water that falls to Earth as rain, snow, sleet, or hail |
| A global process | the worldwide amounts of evaporation and precipitation balance each other out keeping the total amount of freshwater on Earth fairly constant |
Created by:
Ace0512
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