8-2.3 Flashcards
(29 cards)
How long does it take for the moon to orbit?`
27.3
What is denser our Earth or the Moon
moon
What is similar about Eartha n and The Moon
similair composition to earth’s mantle and similar elements
Synchronize rotation
always see side of Earth
How old is the rock on the moon
about 4.6 billion
why do craters stay intact
there is no wind or water on the moon
white crater, mountainous regions
highlands
bright streaks around craters
rays
smooth surface is solid lava
Maria
What is the most respected theory for how the moon was made
Impact theory
Explain impact theory
Mars sized objects hit earth and broke off but earths pin brought back together the dust particles
sliver like appearances
Crescent
more than half of the face is illumiated
gibbous
sunlight is on the left and is getting smaller
waning
sunlight is on rightside
waxing
central dark park of a shadow
umbra
outer lighter part of a shadow
penumbra
occurs when the moon casts a shadow on the earth
Solar Ecplipse
Why doesn’t the solar eclipse happen every month
the moon is on an angled orbit
Earth casts a shadow at the moon
Lunar Ecplise
When does a Lunar ecplise happen
full moon
position of the moon and sun effect the Earth’s oceans
tides
periodic rise and fall of sea level twice a day
tides
higher high and lower low tides. sun and moon work together
spring tides
