Learning Moon Phase Names

Which phase is this?

• Crescent

• Gibbous

• Half

• Quarter

Answer explanation

The quarter moon is one quarter around the moon's orbit. Even though it doesn't look like a quarter, and looks like a half, we don't call it the half moon.

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NGSS.MS-ESS1-1

Which phase is this?

• Quarter

• Half

• Gibbous

• Crescent

Answer explanation

A crescent looks like a crescent shape. It always is between new moon and a quarter moon.

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NGSS.MS-ESS1-1

Which phase is this?

• Quarter

• Full

• Gibbous

• New

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Which phase is this?

• Quarter

• Full

• Gibbous

• New

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Which phase is this?

• Quarter

• Full

• Gibbous

• New

Answer explanation

A gibbous is always after the quarter but before the full moon OR after the full moon and before the next quarter. Gibbous means "swelling"

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NGSS.MS-ESS1-1

Which phase is this?

• Quarter

• Full

• Gibbous

• New

Answer explanation

That was another gibbous, which means "swelling!" Light was just on the other side

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NGSS.MS-ESS1-1

Which phase is this?

• Crescent

• Gibbous

• Half

• Quarter

Answer explanation

The quarter moon is one quarter around the moon's orbit. Even though it doesn't look like a quarter, and looks like a half, we don't call it the half moon.

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NGSS.MS-ESS1-1

When light is growing on the moon (from right to left), what is that called?

• Waxing

• Waning

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When light is fading on the moon (from left to right), what is that called?

• Waxing

• Waning

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Is this moon waxing or waning?

• Waxing

• Waning

• Neither

Answer explanation

New moon means there is no light. Full moon and new moon are not waxing or waning.

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NGSS.MS-ESS1-1