Moon & Its Phases

Front

What causes the phases of the moon?

Back

The moon's orbit around Earth.

Front

What are the dark areas of the moon caused by ancient volcanic eruptions called?

Back

Lunar mare.

Front

What is the term for the path the moon takes around Earth?

Back

Orbit.

Front

What is the name of the phase when the moon is completely dark?

Back

New Moon.

Front

What do we call the phase when the moon is half illuminated?

Back

First Quarter.

Front

What is the phase called when the moon is fully illuminated?

Back

Full Moon.

Front

What is the term for the time it takes for the moon to complete one orbit around Earth?

Back

Lunar month.

Front

What is the effect called when the moon appears to change shape?

Back

Moon phases.

Front

What is the name of the phase when the moon is more than half illuminated but not fully?

Back

Gibbous Moon.

Front

What is the term for the phase when the moon is less than half illuminated?

Back

Crescent Moon.