chapter 29.3 Flashcards
tide
is a rise or a fall in the ocean surface
moon phase
reflects the change in appearance of the moon as seen from the earth
solar eclipse
occurs when the moon moves directly between the sun and earth and casts a shadow on earth
lunar eclipse
occurs when earth passes between the sun and the moon and casts a shadow on the moon
maria
are the dark colored flat lava filled regions on the moons surface
regolith
is a layer of dusty lunar material produced by collisions between asteroids and comets and the moon
how many days does it take thee moon to revolve around the earth
27.3 day
a complete lunar phase cycle takes 29.5 days what is it called
synotic month
do we ever see the back side of the moon
no,we only see one side
what causes the tide to rise or fall
the gravitational pull between the sun and the moon
what is the rise of sea level called
high tide
after the sea level rises how many hours does it take for the sea level drop
about 6 hours
which is farther from the earth the sun or the moon
sun
does the moon or the sun cause a greater effect on earths tides
the moon
how are the sun , the earth, and the moon aligned for a spring tide
the sun, the earth, and the moon are in a straight line
how are the sun the ,earth ,and moon aligned for a neap tide
the sun, the earth, and the moon are at a 90 degree angle
what does the phase of the moon you see depend on
the positions between the earth, moon, and the sun relative to one another
when does a new moon occur
occurs when the moon is between the earth and the sun
how many phases of the moon are there
8 phases
what is the definition of waxing phases
the illuminated portion of the moon becomes greater and greater each night
what is the definition of waning phases
we see less and less of the moon being illuminated
what are the moon phases names
new moon, waxing crescent, 1st quarter, waxing gibbous, full moon, waning gibbous, 3rd quarter, waning crescent
where is the word month derives from
comes from the word moon
how is the earth, moon , and sun aligned during a solar eclipse
occurs when the moon moves directly between the sun and the earth
what is an umbra
darkest portion of the moon’s shadow
what is a penumbra
the lighter shadow of the moon that is casted on earth
how is the earth, moon, and sun aligned during a lunar eclipse
the earth is between the sun and the moon
how are the depressions on the moon formed
by meteorites, asteroids, comits
are their mountains on the moon
yes
which side of the moon is thicker
the side that doesn’t show
is the mantle of the moon a solid or a liquid
solid
what did the clementine spacecraft do (2 things)
it confirmed the thickness of the crust, and provided information of the mineral content on the moon
what did lunar prospector do (3 things)
took photographs of the moon surface,confirmed the moon has a small iron rich core, collected evidence of the presence of water ice
what is the giant impact theory
a mars size object collided with earth which threw debree out into orbit, that debree condensed forming a large mass called the moon
