Vocabulary Word Definition Picture

Weather System

A specific set of weather conditions occurring in the lowest levels of the atmosphere, reflecting the configuration of air movement.

Hurricane

A large, tropical weather system consisting of an extremely low pressure air mass with heavy rains and wind speeds of at least 119km/h.

Ocean Currents

A directional movement of ocean water; surface currents result from steady winds over the ocean surface; deep currents result from density variations due to temperature and salinity differences.

Evaporation/ Condensation

Evaporation: Change of a liquid to a vapor or gas.Condensation: The change from gas state to liquid state.

Oceans and Weather – Read pages 145-149