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ScienceStudy Weather
| Question | Answer |
|---|---|
| weather | "state of the atmosphere at a certain time and place" |
| meteorology | the study of weather |
| meteorologist | someone who studies weather |
| humidity | amount of water vapor in the air |
| transporation | water vapor released by plants |
| run-off | water that runs over and through land and rock |
| water vapor | the gas form of water |
| low pressure | warmer air; air is less dense; warm air rises |
| high pressure | cooler air; denser air; cooler air sinks |
| thermometer | measures temperature |
| anemometer | measures wind speed |
| barometer | measures air pressure |
| weather vane (or wind vane) | measures wind direction |
| cumulus cloud | white, fluffy, usualy means fair weather |
| stratus cloud | gray, flat, usually low in the sky, rain, fog |
| cirrus | thin, feathery, if growing bigger then a change of weather, usually high in the sky |
| strato- | low altitude clouds |
| alto- | middle altitude clouds |
| cirro- | high altitude clouds |
| nimbo- -nimbus | precipitation forming clouds |
| air mass | large body of air |
| front | where two air masses meet |
| warm front | slow-moving, light rain(maybe a few days!), the clear and warmer, goes up and over a cold front |
| cold front | fast-moving, may have sudden storms, may thunderstorms then clear and colder, pushes warm air up and goes under it |
| occluded front | 2 cold air masses move together and push warm air up, cool, precipitation |
| stationary front | 2 air masses meet, neither air mass wants to move, cloudy, rainy |
| climate | weather conditions over time, involves averages |
| Earth's 3 major climate zones | polar, temperate, tropical |
| mountains | higher elevation |
| wind | caused by differences in temperature near mountains and bodies of water |