17.1 Vocabulary

Ozone

Tropospher

• The bottom layer, where temperature decreases with an increase in altitude.

Stratophere

• Beyond the troposphere is the stratosphere, where the temperature remains constant to a height of about 20 kilos.

Mesosphere

• Temperatures again decrease with height until the mesopause.

Thermosphere

• A layer that contains only a tiny fraction of the atmosphere's mass.

heat

• The energy transferred from one object to another becuase of a difference in their temperatures.

Temperature

• Measure of the average kinetic energy of the individual atoms or molecules in a substance.

COnduction

• The transfer of heat through matter by molecular activity.

Convection

• The transfer of heat by mass movement or circulation within a substance.

Radiation

• Travels out in all directions from its source.

Scattering

• Produces a larger number of weaker rays that travel in different directions.

Albedo

• The fraction of total radiation that is reflected by any surface.

isotherm

• Lines that connect points that have the same temp.