unit F list A Flashcards
data
information gathered
phenomenon
an event related to how the world and universe work
model
any representation of a system or its compontents to help one study and understand how it works
axis
the imaginary line around which an object spins or rotates earth rotates around an axis that runs straight though earth from the north pole to the south pole
plausible
consistent with evidence
rotate
to turn or spin in an axis
rotation
the amount of time it takes for an object to make one complete rotation around in its axis. this is is the day length of a planet
time zone
a region throughout which the same standard time is used there are 24 time zones in the world at approximately by meridians at 15 intervals an hour apart
equator
an imaginary circle that divides earth into two halves
called the northern hemisphere and the south hemisphere
hemisphere
one half of a sphere the half of earth that is north of the equator is the northern hemisphere the half that is south of the equator is the southern hemisphere
orbit
another term for revolution
revolution
a complete circle made by a planet around the sun or by a moon around a planet
revolve
to travel around another object in a circular or elliptical
path
crescent moon
the phrase of the moon in which the lit portion of the moon visible from earth surface is less that a half circle crescent shape crescent moons occur right after and right before the new moon
full moon
the phrase of the moon that occurs 14 days after the new moon in which the complete lighted portion of the moons is visible from earth’s surface is a half circle