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The Water Planet
The Water Planet Vocabulary
| 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 the 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; non-polar 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 fresh water on Earth fairly constant. |
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