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ch-19

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The study of the moon, stars, and other objects in space. astronomy
An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates. axis
The spinning motion of a planet about its axis. rotation
The movement of an object around another object. revolution
The path of an object as it revolves around another object in space. orbit
The distance north or south from the equator, measured in degrees. latitude
The two days of the year on which the noon sun is directly overhead at either 23.5° South or 23.5° North. solstice
The two days of the year on which neither hemisphere is tilted toward or away from the sun. equinox
The day of the year that marks the beginning of spring in the Northern Hemisphere. vernal equinox
The day of the year that marks the beginning of fall in the Northern Hemisphere. autumnal equinox
One of the different shapes of the moon as seen from Earth. phase
The partial or total blocking of one object by another. eclipse
The darkest part of a shadow. umbra
The part of a shadow surrounding the darkest part. penumbra
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon. lunar eclipse
The daily rise and fall of Earth's waters on shores. tides
The attractive force between two objects; its magnitude depends on their masses and the distance between them. gravity
Any object that revolves around another object in space. satellite
The orbit of a satellite that revolves around Earth at the same rate that Earth rotates. geosynchronous orbit
A device built to study distant objects by making them appear closer. telescope
A bowl-shaped area that forms around a volcano's central opening; A round pit on the moon's surface. crater
Dark, flat regions on the moon's surface. maria
Created by: dramahannah
Popular Earth Science sets

 

 



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