Moon Phases Review

Front

What is a crescent moon?

Back

A crescent moon is a phase of the moon where it is less than halfway illuminated by the sun, appearing as a thin sliver.

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What is the first quarter moon?

Back

The first quarter moon is a phase where half of the moon is illuminated and visible from Earth, occurring about a week after the new moon.

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True or False: The side of the moon facing the sun is always dark.

Back

False. The side of the moon facing the sun is lit, while the side facing away is dark.

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What is a waning crescent moon?

Back

A waning crescent moon is a phase where the illuminated part of the moon is decreasing and appears as a thin sliver.

Front

True or False: Half of the moon is always lit and the other half is dark.

Back

True. Half of the moon is always illuminated by the sun, but we only see a portion of it from Earth.

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What is a gibbous moon?

Back

A gibbous moon is a phase where more than half of the moon is illuminated but not yet full.

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What is a full moon?

Back

A full moon is a phase where the entire face of the moon is illuminated by the sun, making it appear fully round.

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What is a waning gibbous moon?

Back

A waning gibbous moon is a phase where more than half of the moon is illuminated and the illuminated part is decreasing.

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What is a waxing crescent moon?

Back

A waxing crescent moon is a phase where the illuminated part of the moon is increasing and appears as a thin sliver.

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What causes the different phases of the moon?

Back

The different phases of the moon are caused by the relative positions of the Earth, moon, and sun, affecting how much of the moon's surface is illuminated.