29.3 Flashcards

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1
Q

tide

A

a rise or fall in the ocean surface

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2
Q

moon phase

A

reflects the change in appearance of the moon as seen from earth

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3
Q

solar eclipse

A

occurs when the moon moves directly between the sun and earth and casts a shadow on earth

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4
Q

lunar eclipse

A

occurs when earth passes between the sun and the moon and casts a shadow on the moon

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5
Q

maria

A

the dark colored flat lava filled reigons on the moons surface

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6
Q

regolith

A

a layer of dusty lunar material produced by collisions between asteroids and comets and the moon

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7
Q

how many days does it take the moon to revolve around earth

A

27.3 days

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8
Q

a complete lunar phase cycle takes 29.5 days, what is this called

A

synodic month

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9
Q

do we ever see the back side of the moon

A

no

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10
Q

what causes a tide to rise or fall

A

sun and the moon

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11
Q

what is the rise of sea level called

A

a hugh tide

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12
Q

after the sea level rises how many hours does it take for the sea level drop

A

about 6 hours

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13
Q

which is farther from earth, the sun or the moon

A

the sun

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14
Q

does the moon or the sun cause a greater effect on earths tides

A
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15
Q

how are the sun,the earth, and the moon aligned for a spring tide

A
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16
Q

how are the sun the earth and the moon aligned for a neap death

A

90 degree angle in the north and south

17
Q

what does the phase of the moon you see depend on

A

depends on the positions on the moon earth and the sun relative to one another

18
Q

when does a new moon occur

A

when the moon is between the earth and the sun

19
Q

how many phases of the moon are there

A

8 phases

20
Q

what is the definition of waxing phases

A
21
Q

what is the definition of wanning phases

A
22
Q

what are the moon phase names

A

new moon,waxing cresent, first quarter, waxing gibbous, full moon, waning gibbous, 3rd quarter, wanning crecent, new moon

23
Q

where is the word month derived from

A
24
Q

how is the earth moon and sun aligned during a solar eclipse

A
25
Q

what is an umbra

A
26
Q

what is a penumbra

A

a parcial solar eclipse

27
Q

how is the earth moon and sun aligned during a lunar eclipse

A
28
Q

how are the depressions on the moon formed

A

meteorites,asteroids,and comets

29
Q

are there mountains on the moon

A

yes

30
Q

which side of the moon is thicker

A

the dark side of the moon

31
Q

is the mantle of the moon a solid or a liquid

A

solid

32
Q

what did the clementine spacecraft do

A

it confirmed the thickness of the crust on the moon and it provided information on the mineral content of moon rocks

33
Q

what did the lunar prospector do

A

it took pictures of the surface of the moon, confirmed that the moon has a small iron rich core, and has collected evidence that supports the presence of water-ice on the moon

34
Q

what is the giant impact theory

A