tidal bulge
low tide
high tide
spring tide
neap tide
third quarter moon
first quarter moon
full moon
new moon
waning gibbous
waxing gibbous
waning crescent
waxing crescet
solar eclipse
lunar eclipse
winter solstice
summer solstice
revolve
rotate
vernal equinox
autumnal equinox
counterclockwise
axis
tidal bulge
low tide
high tide
spring tide
neap tide
third quarter moon
first quarter moon
full moon
new moon
waning gibbous
waxing gibbous
waning crescent
waxing crescent
solar eclipse
lunar eclipse
winter solistice
summer solistice
revolve
rotate
vernal equinox
autumnal equinox
counterclockwise
axis
Solar Eclipse
Waning Gibbous
Waxing Gibbous
Waning Crescent
Waxing Crescent
Third Quarter Moon
First Quarter Moon
Spring Tide
Neap Tide
Tidal Bulge
Revolve
Full Moon
New Moon
Low Tide
High Tide
Summer Solstice
Winter Solstice
Rotate
Counterclockwise
Axis
Autumnal Equinox
Axis
Counterclockwise
full moon
high tide
low tide
lunar eclipse
new moon
revolve
rotate
solar eclipse
spring tide
summer solstice
tidal bulge
Vernal Equinox
waning crescent
waning gibbous
waxing crescent
waxing gibbous
winter solstice
Imaginary line through Earth's center Axis
In relation to the Sun Tilt
Caused by the tilt of Earth's axis as the Earth travel around the Sun Seasons
Two days of the year on which neither hemisphere is tilted toward or away from the Sun (September 22 and March 21) Equinox
Two days of the year on which the noon sun is directly overhead at either 23.5 south or north (December 21 and June 21) Solstice
Moon is getting larger in the sky, moving from the New Moon towards the Full Moon Waxing
Different shapes of the moon as seen from earth Phases
Moon is decreasing in size, moving from the Full Moon towards the New Moon Waning
The spinning motion of a planet on its axis Rotation
When half of the Moon's Earth facing side is lit by the sun First quarter
Decreases in size from sunlight Gibbous
When just half of the moon's Eartg-facing side is visible Third quarter
The moon face is completely lit Full moon
Thin silver of the moon Crescent
When the side of the moon is facing earth also faces directly away from the sun New moon
Caused by the interaction of the Earth, Moon and Sun Tides
The movement of an object around another object Revolution
Blocking light from one celestial body by the passage of another between it Eclipse
When the moon passes between the Son and Earth Solar Eclipse
When the moon passes through earth shadow Lunar eclipse
Rocket
Maria
Phases
Mass
Force
Axis
Orbit
Escape velocity
Velocity
Meteoroids
Telescope
Spring tide
Lunar eclipse
Umbra
Inertia
Gravity
Equinox
Revolution
Space probe
Space shuttle
Satellite
Or tubal velocity
Thrust
Craters
Neap tide
Solar eclipse
Penumbra
Eclipse
Weight
Solstice
Rotation
astromony
waning cresent
third quarter
waxing gibbous
full moon
first quarter
waxing cresent
illumination
lunar eclipse
solar eclipse
eclipse
high tide
low tide
gravitationalpull
tides
summer
winter
southernhemisphere
northern hemisphere
poles
equator
solarenergy
orientation
orbitalplane
constant
revolution
hour
night
day
tilted
axis
rotation
orbit
sun
moon
earth
model
autumn
winter
spring
summer
tides
waning crescent
third quarter
waning gibous
full moon
waxing gibous
first quarter
waxing crescent
new moon
moon
earth
sun
neap tide
spring tide
new moon
full moon
1st quarter moon
3rd quarter moon
waxing crescent
waxing gibbous
waning gibbous
waning crescent
lunar eclipse
solar eclipse
what causes seasons
summer solstice
winter solstice
neap tide
spring tide
winter
summer
fall or spring
autumnal equinox
vernal equinox
indirect sunlight
direct sunlight
waxing moon
waning moon
earth
lunar eclipse
waning gibbous
waxing gibbous
horizon
rotate
lunar
waxing crescent
revolve
orbit
solar eclipse
solar system
sun
waning crescent
a round solid figure, or its surface, with every point on its surface equidistant from its center. sphere
an imaginary line about which a body rotates. axis
the action of rotating around an axis or center. rotation
an instance of revolving. revolution
an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination eclipse
when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days. solstice
the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length (about September 22 and March 20). equinox
the shape of the illuminated (sunlit) portion of the Moon as seen by an observer on Earth. moon phase
the phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent. new moon
(of the moon between new and full) have a progressively larger part of its visible surface illuminated, increasing its apparent size. waxing
the phase of the moon in which its whole disk is illuminated. full moon
"shrinking" or decreasing in illumination. waning
an eclipse in which the sun is obscured by the moon. solar eclipse
an eclipse in which the moon appears darkened as it passes into the earth's shadow. lunar eclipse
the angle between an object's rotational axis and its orbital axis, or, equivalently, the angle between its equatorial plane and orbital plane. tilt
Diffused light, as opposed to the direct rays of the sun indirect sunlight
the sun shines directly direct sunlight
the path followed by an object revolving around another object, under the influence of gravitation (see satellite). orbit