warm air mass lies between two cold air masses and is forced to rise

an area of low pressure in the air

strength of the force or weight put on something

line on a weather map joining places where the air pressure is the same

cold air mass pushes a warm air mass ahead of it

spinning around very quickly

neither air mass pushes against the other

warm air mass pushes a cold air mass ahead of it

place ihere two areas of air of different temperatures meet

 structure with parts that turn around in the wind, used for producing electrical power or crushing grain