click below
click below
Normal Size Small Size show me how
earthspacescience
lightning
| unstable air | what are the two conditions required to form a thunderstorm |
| lightning | what is a short-lived bright flash of light produced by an abrupt discharge of electricity through the air |
| return stroke | what phase of a lightning bolt is seen as a brilliant flash of light |
| cumulus stage | the stage in the life of a thunderstorm |
| thunder | a lightning bolt that expands explosively forming a shock wave of sound |
| thermometer | used to to measure temperature |
| barometer | used to measure atmospheric pressure |
| aneroid barometer | uses a flexible, airtight metal box to measure changes in pressure |
| hygrometer | used to measure relative humidity |
| weather vane | a simple device that points into the wind |
| rain gauge | an open, cylinderacal glass jar with a ruler on the side |
| ceilometer | measures the distance from the ground to the base of the clouds |
| supercell | what term refers to a thunderstorm with a single, giant, rotating updraft |