Investigation 3 vocabulary
What is the definition of the moon?
Earths natural satellite
Day 0 is called
New moon
What is a gibbous?
A moon shape that is larger then a first or a quater moon, but smaller then a full moon
A total solar eclipse occurs
when the moon passes exactly between earth and the sun
How old is the moon?
About 4.6 billion years old
What is the definition of highland?
light-colored areas of the moon with lots of rough mountains and craters
Day 7 is called
1st Quarter
What is waxing
Getting bigger
The moon travels around the earth
in about 1 month
What is the diameter of the moon?
3474km
What is the definition of maria(mare)?
The dark surface of cooled magma in a flooded crater
Day 14 is called
full moon
What is waning
Getting smaller
lunar eclipse of the moon occurs
When earth passes exactly between the moon and the sun
The diameter of earth
384000
What is the definition of rilles?
A long narrow valley on the moon
Day 21 is called
3rd Quarter
Phases
each different shape of the moon
Because of the tilt of the moon orbit around earth
earth shadow does not fall on the moon in most months
How long does it take the moon to orbit earth?
29.5 days
What is the definition of craters?
A change in land created by an impact
The moon completes in orbit and goes through its cycle of phases
in just over 4 weeks
Cresent moon
the shape of the moon just after and just before the new moon phase
The reddish brown color of the moon
is typically a fully eclipse moon
How long is a day/night cycle on the moon?
28 days