Phases of the Moon

Front

What is the phase of the Moon when it is less than half illuminated and decreasing in illumination?

Back

Waning Crescent

Front

What is the phase of the Moon when it is half illuminated and increasing in illumination?

Back

First Quarter

Front

What causes the phases of the Moon to change each night?

Back

The alignment between the Earth, Moon, and Sun determines the amount of light reflected by the Moon.

Front

What is the phase of the Moon when it is positioned between the Earth and the Sun?

Back

New Moon

Front

From where does the Moon get its light?

Back

The Sun

Front

What is the phase of the Moon when it is fully illuminated?

Back

Full Moon

Front

What is the phase of the Moon when it is more than half illuminated and decreasing in illumination?

Back

Waning Gibbous

Front

What is the phase of the Moon when it is more than half illuminated and increasing in illumination?

Back

Waxing Gibbous

Front

What is the phase of the Moon when it is less than half illuminated and increasing in illumination?

Back

Waxing Crescent

Front

How long does it take for the Moon to complete one full cycle of phases?

Back

About 29.5 days.