Moon Phases

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What is a Full Moon?

Back

A Full Moon is a phase of the moon when it is fully illuminated by the sun, appearing as a complete circle in the sky.

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NGSS.MS-ESS1-1

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What is a Last Quarter Moon?

Back

A Last Quarter Moon, also known as the third quarter, is a phase where half of the moon is illuminated and the other half is dark.

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NGSS.MS-ESS1-1

Front

What is a New Moon?

Back

A New Moon is a phase of the moon when it is not visible from Earth because the illuminated side is facing away from us.

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NGSS.MS-ESS1-1

Front

What is a Waxing Crescent Moon?

Back

A Waxing Crescent Moon is a phase where a small sliver of the moon is illuminated, increasing in size.

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NGSS.MS-ESS1-1

Front

What is a Waxing Gibbous Moon?

Back

A Waxing Gibbous Moon is a phase where more than half of the moon is illuminated but it is not yet full.

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NGSS.MS-ESS1-1

Front

What causes the phases of the moon?

Back

The phases of the moon are caused by the moon's movement around Earth and how much of its illuminated side is visible from Earth.

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NGSS.MS-ESS1-1

Front

What is the source of the moon's light?

Back

The moon's light comes from the sun, which reflects off the moon's surface.

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NGSS.MS-ESS1-1

Front

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

Back

It takes about 29.5 days for the moon to complete one full cycle of phases.

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NGSS.MS-ESS1-1

Front

What is the difference between a Waxing and Waning Moon?

Back

A Waxing Moon is when the illuminated part is increasing, while a Waning Moon is when the illuminated part is decreasing.

Tags

NGSS.MS-ESS1-1

Front

What is a Supermoon?

Back

A Supermoon occurs when a full moon coincides with the moon's closest approach to Earth, making it appear larger and brighter.

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NGSS.MS-ESS1-1