Lesson 1
the condition of the Earth's atmosphere at a certain time
weather
a collection of small water droplets or ice crystals that are suspended in the air
cloud
long distance winds that travel above global winds for thousands of kilometers
jet streams
an intense local storm that forms strong winds, heavy rain, lightning, thunder and sometimes hail
thunderstorm
the study of weather and the Earth's atmosphere
meteorology
the amount of water vapor in the air
humidity
the point at which the rate of condensation equals the rate of evaporation
dew point
a boundary that forms between air masses
front
a destructive, rotating column of air that has high wind speeds and is sometimes visible as a funnel
tornado
analysis of scientific data to predict future weather conditions
weather forecasting
hail, rain, sleet and snow
precipitation
a type of cloud that are thick and puffy on top and generally flat on the bottom
cumulus clouds
the type of pressure system usually found in an area where conditions are clear with mild temperatures and gentle breezes
high pressure
sunburn is caused by these
UV rays
the weather conditions in an area over a long period of time
climate
a tool used to measure air pressure
barometer
when moist air at or near Earth's surface cools to its dew point creating ______.
Fog
in the water cycle, after water evaporates, this is the step where clouds form
condensation or condenses
a huge mass of ocean water pushed ashore during a hurricane
storm surge
a climate zone found at the northernmost and southernmost areas on Earth's surface
Polar climate zone
a tool used to measure wind speed
anemometer
For classes of clouds: low clouds, middle clouds, high clouds and __________________.
clouds of vertical development
the curving of global wind belts is caused by a phenomena known as
The Coriolis Effect
an electric discharge that happens between a positively charged area and a negatively charged area
lightning
a set of meteorological symbols that represent the weather at a particular observing station
station model