| A | B |
|---|
| hydrosphere | all the water of Earth |
| salinity | amount of salt in water |
| groundwater | rain that soaks in ground |
| aquifer | layer of rock that holds water |
| evaporation | changing of liquid to gas |
| condensation | changing of gas to liquid |
| precipitation | rain, snow , hail, sleet |
| sublimation | ice changes to vapor |
| frost | vapor freezes directly to ice |
| sun | provides energy |
| cirrus | high wispy, thin clouds |
| cumulus | mid-altitude puffy clouds |
| stratus | low dark clouds cover sky |
| fog | ground level cloud |
| reservoir | lake behind a dam |
| sleet | drops freeze before they hit |
| hail | ice that builds in clouds |
| currents | carry warm water to poles |
| air pressure | push of air agains surface |
| Pacific | largest and deepest ocean |
