Unit F - List A Flashcards
information gathered
data
an event related to how the world and universe work
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 strait through Earth from the North Pole to the South Pole.
axis
consistent with evidence
plausible
a region throughout which the same standard time is used. ( There are 24 time zones in the world at approximately by meridians at 15 degree intervals, an hour apart)
time zone
an imaginary circle that divides Earth into two halves called the Northern Hemisphere and the Southern Hemisphere
equator
one half of a sphere
hemisphere
a complete circle made by a planet around a sun or by a moon around a planet (orbit)
orbit/ revolution
to spin or turn around an axis
rotate/ rotation
to travel around another object in a circular or elliptical path
revolve
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
crescent Moon
the phase of the Moon that occurs about 14 days after the new Moon is visible from Earth’s surface & appears as a full circle
full Moon
the phase of the Moon, occurring about seven days after the new Moon, in which the lighted part 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 that 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 (between the full and new Moon)
waning
the phases of the Moon when the illuminated portion visible from Earth is increasing (between the new full Moon)
waxing
