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CH 20
vocabulary
| Question | Answer |
|---|---|
| orbit | the path an object follows as it moves around another object is an |
| revolution | the motion of one object around another object is called |
| rotation | some spinning objects rotate on a rod or axle |
| rotation axis | the line on which an object rotates is the |
| solstice | is a day when earth's rotation axis is the most toward or away from the sun |
| equinox | is a day when earth's rotation axis is the leaning along earths orbit neither toward nor away from the sun |
| maria | the large dark, flat areas on the moon are called |
| phase | the portion of the moon or a planet reflecting light as seen from earth is called a |
| wax phase | more of the moon's near side is lit each night |
| waning phase | less of the moon's near side is lit each night |
| umbra | is the central darker part of a shadow where light is totally blocked |
| penumbra | is the lighter part of a shadow where light is partially blocked |
| solar eclipse | when the moon's shadow appears on earth's surface, a _________ is occurring |
| lunar eclipse | occurs when the moon moves into earth's shadow the moon moves through |
| tide | is the daily rise and the fall of sea level |
Created by:
star K
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