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Earth-Sun-Moon
Terms for Games
Term | Definition |
---|---|
The time it takes the Earth to make one complete rotation on its axis | Day |
an event during which one object in space casts a shadow onto another | Eclipse |
The two days of the year on which neither hemisphere is tilted toward or away from the sun | Equinox |
The phase of the moon when it is one-quarter of the way through its orbit, and we see the right half of the moon lit | First Quarter Moon |
Moon phase when the entire side facing Earth is illuminated. | Full Moon |
A force of attraction between objects that is due to their masses. | Gravity |
The changing appearance of the moon as it revolves around, and REFLECTS sunlight back to Earth. | Lunar Phases |
Tides that have the smallest daily tidal range. These take place during the first and third quarter phases of the moon. | Neap Tides |
The phase of the moon in which only a dim outline of its shape is visible. | New Moon |
the lighter part of a shadow where light is partially blocked | Penumbra |
The motion of a body as it travels around another body in space. | Revolution |
The spinning motion of a planet on its axis | Rotation |
A planetary body that orbits a larger planetary body. | Satellite |
A division of the year that is characterized by recurring weather conditions | Season |
The point at which the sun is as far north or as far south of the equator as possible | Solstice |
A tide with the greatest difference between low and high tides. These take place during new and full moon phases. | Spring Tides |
the phase of the moon when it is three-quarters of the way through its orbit, and we see the left half of the moon lit | Third Quarter Moon |
The difference in levels of ocean water at high tide and low tide | Tidal Range |
the regular rise and fall of the ocean's surface influenced by the moon's gravity pulling on earth | Tides |
the darkest part of a shadow | Umbra |
Less than half of the moon's left side appears to be lit. | Waning Crescent |
More than half of the moon's left side appears lit and it's shrinking toward a new moon. | Waning Gibbous |
Less than half of the moon's right side appears to be lit. | Waxing Crescent |
More than half of the moon's right side appears lit and it's growing toward a full moon. | Waxing Gibbous |
The time it takes the Earth to orbit the sun once, 365.25 days. | Year |