Science-Chapter 3
Terms
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- isobar
- a line on a weather map that joins places that have the same air pressure
- thunderstorm
- a small storm often accompanied by heavy precipitation and frequent thunder and lightning.
- occluded
- cut off, as in a front where a warm air mass is caught between two cooler air masses.
- Air mass
- A huge body of air that has similar temperature, humidity, and air pressure at any given height.
- polar (air mass)
- a cold air mass that forms north of 50* north latitude or south of 50* south latitude and has high air pressure.
- lightning
- a sudden spark, or energy discharge, caused when electrical charges jump between parts of a cloud, between nearby clouds, or between a cloud in the ground,
- tornado
- a rapidly whirling, funnel-shaped cloud that reaches down to touch Earth's surface.
- isotherm
- a line on a weather mad that joins paces that have the same temperature
- Storm
- a violent disturbance in the earth's atmosphere
- meteorologists
- scientists who study the causes of weather and try to predict it