Which term describes the event when the Moon is completely dark?

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Multiple Choice

Which term describes the event when the Moon is completely dark?

Explanation:
When the Moon is completely dark, the event is a lunar eclipse. This happens when Earth sits directly between the Sun and the Moon, so the Moon moves into Earth's shadow and is no longer illuminated by sunlight. A Full Moon, by contrast, is when the Sun’s light fully brightens the side of the Moon facing us, not when it’s dark. A Gibbous Moon is simply a phase where more than half of the Moon’s face is lit, but not completely. “Moon” just names the object, not an event. During a total lunar eclipse, the Moon is entirely within Earth’s shadow, which is why it appears dark (often with a reddish tint from sunlight filtered through Earth’s atmosphere).

When the Moon is completely dark, the event is a lunar eclipse. This happens when Earth sits directly between the Sun and the Moon, so the Moon moves into Earth's shadow and is no longer illuminated by sunlight. A Full Moon, by contrast, is when the Sun’s light fully brightens the side of the Moon facing us, not when it’s dark. A Gibbous Moon is simply a phase where more than half of the Moon’s face is lit, but not completely. “Moon” just names the object, not an event. During a total lunar eclipse, the Moon is entirely within Earth’s shadow, which is why it appears dark (often with a reddish tint from sunlight filtered through Earth’s atmosphere).

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