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39 Cards in this Set
- Front
- Back
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Phases: |
The different “shapes” of the moon as it completes a revolution around the Earth caused by changes in the position of the Earth and Moon |
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Eclipse |
When an object in space comes between the sun and a third object, it casts a shadow on the third object causing an eclipse |
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Umbra |
The darkest part of an objects shadow. From any point in the umbra, light is blocked out |
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Penumbra |
The largest part of an objects shadow. From any point in the penumbra, some light is visible and some is blocked out |
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Lunar Eclipse |
When the Earth passes directly between the moon and the sun, blocking sunlight from the moon |
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Solar Eclipse |
When the moon passes directly between Earth and the sun, blocking sunlight from reaching the Earth |
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Astronomy |
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Rotation |
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Axis |
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Revolution |
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What are the seasons caused by? |
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Solstice |
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Equinox |
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Moons Characteristics |
size, Density, Temperature, Atmosphere, Water |
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Origin of moon |
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Maria |
Dark, flat areas |
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Craters |
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Highlands |
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Tides |
Rise and fall of ocean water |
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When do tides occur? |
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Spring Tides |
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When do Spring Tides occur |
Full and New moons |
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Neap Tides |
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When do neap tides occur |
Third and First quarter |
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Do we always see the same side of the moon |
Yes |
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Orbit |
Path Earth follows |
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1. New moon 2. wanning gibbous 3. Third quarter 4. Wanning crescent 5. Full 6. Waxing crescent 7. 1st quarter 8. Waxing gibbous |
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Which side of the moon appears in the waxing phase and first |
left |
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Which side of the moon appears in the waning phase and 3rd quarter |
right |
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In Earth days, how long is a day on the moon |
29.5 |
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Compared to the Earth, how long is a year on the moon? |
1 day |
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How long does it take the Earth to revolve once around the sun |
365.25 |
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How long does it take the Earth to rotate once on its axis |
24 hrs |
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What causes the phases of the moon |
Changes in position of the Earth and Moon |
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Where is the suns rays the most direct year round? |
Equator |
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Autumnal Equinox |
September 22nd |
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Summer solstice |
June 21st |
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Vernal Equinox |
March 21st |
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Winter solstice |
December 21st |
