| A | B |
|---|
| irrigation | The process of supplying water to areas of land to make them suitable for growing crops. |
| photosynthesis | The process by which plants use water, plus carbon dioxide and energy from the sun to make food. |
| habitat | The place where an organism lives and that provides the things it needs to survive. |
| water vapor | The invisible, gaseous form of water. |
| ground water | Water that fills the cracks and pores in underground soil and rock layers. |
| polar molecule | A molecule that has electrically charged areas. |
| surface tension | The tightness across the surface of the water that is caused by the polar molecules pulling on each other. |
| solution | A mixture that forms when one substance dissolves another. |
| solvent | A substance that dissolves another substance, forming a substance. |
| state | A form of matter; solid, liquid, or gas. |
| specific heat | The amount of heat needed to increase the temperature of a certain mass of substance by 1 degree Celsius. |
| water cycle | The continuing process by which water moves through the living and nonliving parts of the environment. |
| transpiration | The process by which plants release water vapor through their leaves. |
| capillary action | The combined force of attraction among water molecules and with the molecules of surrounding materials. |
| evaporation | The process by which molecules at the surface of a liquid absorb enough energy (ex. radiant energy from the Sun) to change to the gaseous state. |
| condensation | The process by which a gas changes to a liquid, caused by cooling or increased pressure. |
