eclipse
a shadow made when an object comes between the sun and another object producing a shadow.
Solar eclipse
when a new moon blocks our view from the sun
solar corona
the gases around the sun that are visible around the outside of the moon during a eclipse
umbra
the darkest part of the shadows cast by the moon
total solar eclipse
when people get complete darkness and are in the middle of the umbra
penumbra
the larger part of shadow, which is less dark on the earth
partial solar eclipse
people in the penumbra that can only see the sun
how many moon motions are there?
2 moon motions
The moon ______ on its axis every ________ days
rotates, 23.7
the moon also ______ around the earth once every ______ days long meaning one year on the moon
revolves, 23.7
the moon rotates and revolves at the same rate, so the moon always has the _____ side facing the earth
same
new moon
when the sunlit side of the moon is facing away from the earth
waxing cresent
the portion of the moon that you can see is waxing into a crescent shape
waxing
growing
first quarter
when half of the sunlit side of the moon showing as it is waxing
waning
getting smaller
waxing gibbus
when the moon continues to grow and 3/4 of the moon is facing the earth
full moon
when the sunlit side of the moon is facing the earth
waneing gibbous
when the moon starts to wane and is 3/4 visible
third quarter
when half of the sunlit side of the moon is showing as it is waning
waneing crecent
the portion of the moon that you can see is waning into a crescent shape
tide
the daily rise and fall of the earths coastlines
(essay question) How do tides happen?
the pull of the moons gravity on the earths water produces TIDAL BULDGE on the side closest and furthest from the moon. the sides with tidal buldes are having HIGH tide and the opposite sides would be having LOW tides. the earths rotation causes 2 high ti
ebb
lowest point of the day on the shoreline
flow
highest point of the day on the shoreline
tides are not affected by what two items?
wind or waves
(essay question) what is a spring tide?
the sun also has a gravitational pull on the earth. depending on the suns position and the moons position the height of the tide will vary. if the sun and the moon are together, lined up in a 180 degree angle, there is more gravitational pull making highe
(essay question) what is a neap tide?
if the sun and the moon are perpendicular, or RIGHT angles from each other the tides are not as drastic which is a neap tide