| A | B |
|---|
| evaportion | water changes to a gas |
| condensation | water vapour changes back to water |
| precipitation | rain, hail, sleet or snow |
| clouds | water condenses on dust particles and these are formed |
| cirrus clouds | feathery clouds made of ice crystals |
| cumulus clouds | heaped up masses like look like cotton balls |
| nimbus | a term to describe rain clouds |
| stratus clouds | layered sheets of cloud |
| water cycle | the continuous cycle of water changing from a liquid to a gas and back again |
| alto | a term used to describe clouds a high levels |
| humidity | the amount of moisture in the air |
| hygrometer | an instrument used to measure relative humidity |
| barometer | an instrument used to measure air pressure |
| anemometer | an instrument used to measure wind speed |
| wind vane | an instrument used to measure the direction the wind is blowing |
| forecast | to predict what the weather will be like |
