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 components, to help one study and to understand how it works.
axis
the imaginary line around which an object spins, or rotates. Earth rotates around an axis that runs straight through Earth from the North Pole to the South Pole
crescent moon
the phase of the moon in which the lit portion of the moon visible from Earth’s surface is less than a half-circle (crescent shape). Crescent moons occur right after and right before the new moon.
equator
an imaginary circle that divides Earth into two halves called the Northern Hemisphere and Southern Hemisphere
first-quarter Moon
the phase of the moon, occurring about seven days after the new moon, in which the lighted portion of the moon that is visible from Earth’s surface half circle.
Full moon
The phase of the moon, occurring about seven days after the new moon, in which the lighted portion of the moon that is visible from Earth’s surface is a half circle.
gibbous moon
a phase of the moon before or after it is full, when more than half of its disk is illuminated
lunar cycle
the revolution of the moon around the Earth that produces the changing phases of the moon. One complete lunar cycle takes about 29.5
new moon
the phase of the moon, occurring about 14 days after the full moon, in which none of the lighted portion of the moon is visible
orbit
another term for revolution
plausible
consistent with evidence
rotate, rotation
to turn or spin around on an axis
waning
the phases of the moon when the illuminated portion visible from Earth’s decreasing (between the full and new moon)