The Atmosphere
Earth & Energy
Days & Seasons
Water
Wind
100

Gas needed for respiration

What is oxygen

100

Ultimate source of almost all heat on Earth

What is the sun

100

The main factor producing seasonality on Earth

What is tilt of the Earth's axis

100

Phase change from liquid to solid

What is freezing

100

This makes the wind blow

What is difference in atmospheric pressure

200

The most abundant gas in Earth's atmosphere

What is nitrogen

200

Measure of average kinetic energy within a substance

What is temperature

200

The latitude that receives the most annual insolation

What is the equator

200

Amount of water vapor in the air

What is humidity

200

The prevailing winds in the tropics

What are the trade winds

300

Layer of the atmosphere in which we live

What is the troposphere

300

Heat transferred by moving currents

What is convection

300

Shortest day in the Northern Hemisphere

What is the December Solstice

300

Temperature at which condensation will occur

What is dew point

300

This force deflects winds to the right in the Northern Hemisphere

What is Coriolis force

400

Gas that is a pollutant at the surface, but absorbs dangerous UV radiation higher up

What is ozone (O3)

400

Earth emits energy mainly in this portion of the EM spectrum

What is infrared

400

When the Earth is farthest from the sun

What is aphelion

400

Maximum pressure of water vapor for a given temperature

What is saturation vapor pressure

400

Friction is negligible above this part of the atmosphere

What is the planetary boundary layer

500

Most variable gas in Earth's atmosphere

What is water vapor

500

Gases that are particularly good at absorbing and re-emitting infrared radiation

What are greenhouse gases

500

Colder air next to the ground with slightly warmer air just above it by late night or early morning

What is a nocturnal inversion (or radiation inversion)

500

Relative humidity greater than 100%

What is supersaturation

500

Upper-atmosphere winds that blow parallel to straight isobars

What are geostrophic winds