a weather instrument used to measure air pressure.

a large body of air that has similar temperature and humidity throughout.

the border where two air masses meet.

a map that uses symbols to show weather data.

an area that has similar average temperatures and precipitation throughout.

a climate zone near the equator characterized by warm temperatures.

a climate zone located between the tropics and the polar circles generally characterized by moderate temperatures rather than extremely hot or cold temperatures.

a climate zone characterized by very little precipitation and extremely cold temperatures.

an imaginary line around Earth, equally distant from the North and South Poles.

a measure of how far north or south a place is from the equator.

is the water that cannot soak into the ground and instead flows across Earth’s surface.