Moon Phases
When the moon is getting brighter
waxing
The dark part of a shadow
umbra
The moon has a cratered surface because of its lack of one of these
an atmosphere
Gravitational attraction increases when the distance between 2 objects is
smaller
The earth tilted how many degrees towards the sun
23.5
The moon phases responsible for neap tides
first and third quarter moons
When the moon blocks the sun and the moon's shadow is cast onto earth
solar eclipse
maria
When water levels are high during the day time, we are experiencing this type of tide
high tide
December 21
Winter solstice
The moon phase right before the new moon
waning crescent
When the moon is halfway between the umbra and penumbra
partial lunar eclipse
lowlands of the moon are surrounded by higher elevated terrain known as
terrae
Higher than average high tides, lower than average low tides
spring tides
During the equinoxes, the sun located over this major line of latitude
the equator
The moon phase that occurs during a solar eclipse
new moon
When your location is right below the penumbra of the moon, you experience
a partial solar eclipse
mountain ranges on the moon are not formed by plate tectonics, but by the act of
impacts
the sun subtracts from the lunar tide during a
neap tide
When the sun is directly over the tropic of cancer
summer solstice
The moon's approximate rotational period
27.5 days
When the moon is located in the earth's penumbra
penumbral lunar eclipse
The most dangerous thing on the moon's surface besides temperature extremes and the lack of oxygen
meteorites
lunar tides are stronger than solar tides because
the moon is closer to the earth than the sun
The sun located how many degrees above the horizon on the summer solstice
73 degrees