unit F-List A Flashcards
information gathered from an experiment; firsthand
evidence from the 5 senses or from machines that extend our senses.
data
an event related related to how the world and universe works.
phenomenon
any representation of a system, or its components, to help one study and understand how it works.
model
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.
axis
consistent with evidence
plausible
to turn or spin around an axis
rotate / rotation
a region throughout which the same standard time is used.
time zone
an imaginary circle that divides Earth into two halves called the Northern Hemisphere and Southern Hemisphere.
equator
one half of a sphere.
Hemisphere
another term for a revolution.
orbit
a complete circle made by a planet around a sun or by a moon around a planet (orbit).
revolution
to travel around another object in a circular or elliptical path.
revolve
he phase of the moon in which the lit portion of the moon visible from Earth´s surface is less than a half circle. crescent moons occur right after and right before the new moon,
crescent moon
the phase of the moon that occurs about 14 days after the new moon in which the complete lighted portion of the moon is visible from the Earth´s surface and appears as a full circle.
full moon
the phase of the moon, occurring about 7 days after the new moon, in which the lighted portion of the moon that is visible from Earth´s surface is a half circle.
first quarter moon
a phase of the moon before or after it is full, when more than half of its disk is illuminated.
gibbous moon
the phase of the moon that occurs about 7 days after the full moon in which the lighted portion of the moon is visible from Earth´s surface is a half circle.
last quarter moon
the revolution of the moon around earth that produces the changing phases of the moon. one complete lunar cycle takes about 29.5 days.
lunar cycle
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 from Earth´s surface.
new moon
the phases of the moon when the illuminated portion visible from Earth is decreasing.
waning
the phases of the moon when the illuminated portion visible from Earth is increasing.
waxing