Sun-Moon-Earth System Phenomena

Front

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

Back

Waning Gibbous

Front

What is the phase of the moon when it is completely illuminated?

Back

Full Moon

Front

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

Back

First Quarter

Front

What is the phase of the moon when it is half illuminated and decreasing in illumination?

Back

Last Quarter

Front

What is the term for the phenomenon where we only see one side of the moon from Earth?

Back

Synchronous Rotation

Front

How long does it take for the Moon to complete one full revolution around the Earth?

Back

28.5 days

Front

What causes high and low tides on Earth?

Back

The gravitational pull of the Moon and the Sun.

Front

What is the term for the time when the tide is at its highest point?

Back

High Tide

Front

What is the term for the time when the tide is at its lowest point?

Back

Low Tide

Front

What is the average distance from the Earth to the Moon?

Back

Approximately 238,855 miles (384,400 kilometers).