Chapter 29.3 Flashcards
a rise or fall in the ocean surface
tide
reflects the change in appearance of the moon as seen from Earth
moon phase
occurs when the moon moves directly between the sun and Earth and casts a shadow on Earth
solar eclipse
occurs when Earth passes between the sun and the moon and casts a shadow on the moon
lunar eclipse
the dark-colored, flat, lava filled regions on the moon’s surface
Maria
a layer of dusty lunar material produced by collisions between asteroids and comets and the moon
Regolith
How many days does it take the moon to revolve around Earth
27.3 days
A complete lunar phase cycle takes 29.5 days, what is this called
synodic month
Do we ever see the back side of the moon
no
What causes a tide to rise or fall
the gravitational pulls of 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 to drop
6 hours
Which is farther from Earth, the sun or the moon
the Sun
Does the moon or the sun cause a greater effect on Earth’s 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 the moon aligned for a neap tide
90 degree angle
What does the phase of the moon you see depend on
depends on the positions of the moon, Earth, and the sun relative to one another
When does a new moon occur
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
where the illuminated portion of the moon becomes greater and greater each night
What is the definition of waning phases
where the illuminated part becomes less and less each night
What are the moon phase names
the moon phase names are new, waxing crescent, 1st quarter, waxing gibbous, full, waning gibbous, 3rd quarter, waning crescent
Where is the word month derived from
the root word moon
How is the Earth, moon, and sun aligned during a solar eclipse
the moon is between the sun and the Earth in a straight line
What is an umbra
the darkest portion of the moon shadow
What is a penumbra
lighter portion of the moon shadow that is projected on Earth
How is the Earth, moon, and sun aligned during a lunar eclipse
the Earth is in the middle of the sun and moon in a straight line
How are the depressions on the moon formed
by meteorites, asteroids, and comets
Are there mountains on the moon
yes
Which side of the moon is thicker
the dark side (The side that does not show)
Is the mantle of the moon a solid or a liquid
a solid
What did the Clementine spacecraft do
It confirmed the thickness of the crust. Provided information of mineral content of rocks on the moon
What did the Lunar Prospector do
Took photographs of the moon’s surface, confirmed the moon has a iron-rich core, and the presence of water-ice
What is the Giant Impact Theory
A theory where scientist thought that Mars-sized objects collided with Earth causing debris to get thrown into orbit, that debris condensed into a large mass that turned into the moon
