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30 Cards in this Set
- Front
- Back
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Type of telescope that uses lenses
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refracting
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Type of telescope that uses mirrors
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reflecting
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The process of linking seperate telescopes together so they act as one.
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interferomentry
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Three things the Earth atmosphere contains that can block clear vision through a telescope.
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water vapor
dust particles pollution |
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2 reasons why experiments are done on the International Space Station.
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to find cures for diseases
to improve length of time humans can spend in space |
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An object that orbits a planet or other body larger than itself and which is not man-made
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natural satellite
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Part of moon that usually contains the most craters
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highlands
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Part of moon that is usually smooth
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maria
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Valley-like structues in the maria.
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rilles
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Material blasted away on the moon after a crater hits.
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ejecta
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Long trails of ejecta
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rays
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What the moon lacks that leads to it having many craters
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- atmosphere
- erosion causing agents (water and wind) |
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What the side of the moon we see has that the side we dont see lacks
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greater weight
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Reason why the moon affects the tides
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gravitational pull
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Average time it takes for a lunar month to pass
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29.5 days
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Beginning of the lunar month when no moon is visible
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new moon
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End of hte lunar month when we see the entire moon
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full moon
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Full moon occuring twice in the same month
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blue moon
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When the moon passes in front of the sun and casts a shadow on the portion of Earth
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eclipse
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Partial blockage of the sun
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partial eclipse
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Full blockage of the sun
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full eclipse
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Three things needed for erosion to occur
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water, wind, and tectonic activity
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Three theories as to how the moon formed:
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- a big blog broke away
- the moon formed seperately - a large object hit Earth, breaking away pieces, which then came back together |
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Russian space explorer
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cosmonaut
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American space explorer
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astronaut
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7 countries associated with the ISS:
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US, Russia, Japan, Brazil, Italy, Canada, and the European Union
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age of the maria on the moon
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between 3.1 and 3.8 billion years old
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age of highlands on the moon
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between 3.8 and 4.6 billion years old
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device used to magnify objects far away
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telescope
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type of craters on the moon
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impact craters
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