Moon Phases

Front

What does it mean to revolve?

Back

To move around in a circle.

Front

What is a gibbous moon?

Back

A gibbous moon shows more than half of the bright side of the moon.

Front

What is a crescent moon?

Back

A crescent moon shows less than half of the bright side of the moon.

Front

What is the cycle of moon phases?

Back

The moon seems to change shape from day to day in a cycle that lasts about a month.

Front

Why can we only see one side of the moon from Earth?

Back

The moon rotates and revolves at the same speed.

Front

What is a full moon?

Back

A full moon is when the entire face of the moon is illuminated.

Front

What is a new moon?

Back

A new moon is when the moon is between the Earth and the Sun, and its illuminated side is facing away from us.

Front

What is the first quarter moon?

Back

The first quarter moon is when half of the moon's surface is illuminated and visible from Earth.

Front

What is the last quarter moon?

Back

The last quarter moon is when the opposite half of the moon's surface is illuminated compared to the first quarter.

Front

What is a waxing gibbous moon?

Back

A waxing gibbous moon is when more than half of the moon is illuminated and it is increasing in illumination.