| A | B |
|---|
| Water Cycle | The movement of water between the atmosphere and the earth's surface |
| runoff | water that runs over the earth's surface and flows into streams |
| water table | the top of the ground water layer |
| geyser | a place where hot groundwater and steam blast into the air |
| reservoir | an artificial lake created by placing a dam across a river |
| precipitation | condensed water vapor that is pulled down by gravity in the form of rain, snow, sleet, or hail. |
| atmosphere | layer of gasses that surrounds the earth |
| troposphere | bottom layer of the atmosphere extending fro the ground level up to 16 kilometers above the earth |
| stratosphere | second layer of the atmosphere, it includes the ozone layer |
| fog | stratus clouds that form near the ground |
| altitude | height above the earth's surface |
| stratus clouds | low, flat clouds that form in layers at an altitude of less than 2000 meters |
| cumulus clouds | puffy, white clouds that look like cotton balls at an altitude between 200 and 7000 meters |
| cirrus clouds | high, wispy clouds made of ice crystals at and altitde between 7000 and 13000 feet |
