17-1 Describing Weather

Front

What is the starting point of the water cycle?

Back

Evaporation.

Front

What is the ending point of the water cycle?

Back

Precipitation.

Front

What do northerly winds blow from?

Back

North to south.

Front

What is the maximum amount of water vapor present at 5 degrees C?

Back

About 0.4 g/m3.

Front

What is the temperature at which air is saturated and condensation forms?

Back

Dew point.

Front

What instrument is used to measure relative humidity?

Back

Psychrometer.

Front

What is the definition of evaporation?

Back

The process by which water changes from a liquid to a gas.

Front

What is precipitation?

Back

Any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface.

Front

What is relative humidity?

Back

The amount of water vapor present in the air compared to the maximum amount the air can hold at that temperature.

Front

What is the role of the psychrometer?

Back

To measure the relative humidity of the air.