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Earth & Space
| Question | Answer |
|---|---|
| rotation (rotate) | the spinning motion of an object around a central axis |
| 24 | the number of hours in a day |
| revolution (revolve) | the movement of one object around another object |
| equinox | the two days of the year when neither hemisphere is tilted toward or away from the sun |
| axis | an imaginary line which an object revolves or spins; Earth's is titled at about 23.44 degrees |
| orbit | the path of an object as it revolves around another object in space |
| elliptical | not quite circular |
| calendar | a system of organizing time that defines the beginning, length, and divisions of a year |
| solstice | the two days of the year when the sun reaches is greatest distance north of south of the equator |
| 12 | the number of months in a year |
| 365 (Leap Year = 366) | the number of days in a year |
| hemisphere | half of a sphere or half of Earth |
| lunar eclipse | the blocking of sunlight to the moon; Earth is directly between the sun and moon |
| vernal | another word for "spring" |
| autumnal | another word for "autumn" or "fall" |
| phase | one of the different shapes of the moon as seen from Earth |
| eclipse | the partial or total blocking of one object in space by another object in space |
| solar eclipse | the blocking of sunlight to Earth; the moon is directly between the sun and Earth |
| umbra | the darkest part of a shadow |
| penumbra | the outer region of the darkest part of a shadow |
| satellite | an object that revolves around another object |
| tide | the periodic rise and fall of the ocean's water level |
| spring tide | the tide with the greatest difference between consecutive low and high tides |
| neap tide | the tide with the least difference between consecutive low and high tides |
| telescope | a devise used to observe distant objects; making them appear closer |
| maria | dark, flat areas on the moon's surface formed from huge, ancient lava flows |
| crater | a large pit caused by the impact of a meteoroid |
| meteoroid | a chunk of rock or dust in space |
| meteor | a streak of light in the sky produced by the burning of a meteoroid as it passes through Earth's atmosphere |
| meteorite | a meteoroid that passes through the atmosphere and then hits a planet or the moon's surface |
Created by:
mtrump
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