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astronomy
Science vocabulary
| Term | Definition |
|---|---|
| astronomy | the study of the moon, stars and other objects in space |
| rotation | the spinning motion of a planet on its axis |
| revolution | the movement of an object around another object |
| orbit | the path of an object as it revolves around another object in space |
| solstice | the two days of the year on which the sun reaches its greatest distance north or south of the equator |
| equinox | the two days of the year on which neither hemisphere is tilted toward or away from the sun |
| moon | a natural satellite that revolves around a planet |
| phrase | one of the different apparent shapes of the moon as seen from Earth |
| gravity | a force that moves rocks and other materials downhill: the force that pulls objects toward each other |
| axis | an imaginary line that passes through earth's center and the north and south poles, about which earth rotates |
| lunar eclipse | the blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon |
| solar eclipse | the blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth |
| comet | a loose collection of ice, dust and small rocky particles, typically with a long, narrow orbit of the sun |
| asteroid | rocky objects revolving around the sun that are too small and numerous to be considered planets |
| meteor | a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere |
Created by:
kjkessler5
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