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6 Cards in this Set
- Front
- Back
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Solar Eclipse |
When a new moon passes directly between the Earth and the Sun, it causes a solar eclipse (Figure below). The Moon casts a shadow on the Earth and blocks our view of the Sun. |
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Umbra |
The umbra is the inner, cone-shaped part of the shadow. It is the part in which all of the light has been blocked. |
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Crescent |
Before and after the quarter-moon phases are the gibbous and crescent phases. During the crescent moon phase, the Moon is less than half lit. It is seen as only a sliver or crescent shape. |
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Gibbous |
During the gibbous moon phase, the Moon is more than half lit. It is not full. |
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Lunar Eclipse |
Sometimes a full moon moves through Earth's shadow. This is a lunar eclipse (Figure below). During a total lunar eclipse, the Moon travels completely in Earth’s umbra. During a partial lunar eclipse, only a portion of the Moon enters Earth’s umbra. |
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Penumbra |
The penumbra is the outer part of Moon’s shadow. It is where the light is only partially blocked. |
