Semester Exam Flashcards
Last one of 8th grade!!!!! (24 cards)
apogee
moon is farthest from Earth
perigee
moon is closest to Earth
mares
flat, lowland plain that has hardened lava
rills
channels that run a cross the surface formed by lava
no weather, why?
thin atmosphere because of small mass and little gravity
how long does it take to orbit
29.5 days
how long does it take to rotate
29.5
order of solar eclipse
Sun, Moon, Earth | Earth, Moon, Sun
order of lunar eclipse
Sun, Earth, Moon | Moon, Earth, Sun
how did scientists know that the moon had a small atmosphere before landing on it
craters, terminator line, size
terminator line
light |darkness
umbra
the darkest part of a shadow
penumbra
the part of the shadow that is not as dark as the umbra
equinox
day and night are equal
solstice
longest / shortest amount of light in a day
sunspots
darker because of lower temperature
flares
bursts of energy that flash off the surface (explosions)
corona
outermost surface, only visible during solar eclipse, much hotter
core
hottest part of the solar system, energy
prominences
flares that loop back to the surface
photosphere
visible, but cooler
chromosphere
reddish, but not visible to the eye
why are there seasons
the tilt of the axis
Keep going!
You can do this!!
