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BellaireSCI8AstroCH1
Bellaire SCI8 Astronomy CH1
| Question | Answer |
|---|---|
| Astronomy | the study of the moon and starts and other objects in space |
| Rotation | Earth’s spinning on its axis |
| Revolution | the movement of one object around another object |
| Orbit | Earth’s path as it revolves around the sun |
| 23.5* | the angle of the tilt of the Earth’s axis |
| Latitude | is a measurement of distance from the equator, expressed in degrees north and south |
| Solstice | two days of the of the year on which the noon sun is directly overhead at either 23.5* South or 23.5* North |
| June 21 | the summer solstice when the noon sun is overhead at 23.5* North |
| Equinox | equal night when the lengths of nighttime and daytime are about the same |
| Vernal Equinox | spring equinox occurs around March 21 when the length of nighttime and daytime are equal |
| Autumnal equinox | autumn equinox occurs September 23 when the length of nighttime and daytime are equal |
| Solar eclipse | occurs when the moon passes between Earth and the sun, blocking the sunlight from reaching the Earth |
| Umbra | the darkest part of the moons shadow that is cone shaped |
| Penumbra | the part of the moon’s shadow that surrounds the darkest part |
| Lunar eclipse | the blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon |
| Tides | the rise and fall of water every 12.5 hour in the oceans |
| Gravity | the pull of the moon and Earth (including the water on the Earth) towards each other |
| Spring tide | a tide with the greatest difference between low and high tides |
| Neap tide | a tide with the least difference between low and high tides |
| Satellite | any natural or artificial object that revolves around an object in space; moon around Earth, Sputnik 1, Explorer 1 |
| Geosynchronous orbits | satellites that revolve around Earth at the same rate that Earth rotates; they seem to hover over a given point; TV satellites to relay signals |
| Telescopes | a device built to study distant objects by making them appear closer |
| Craters | round pits that cover the moon’s surface |
| Maria | Latin word for “sea”; dark flat regions on the moon’s surface |
Created by:
kdewey
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