Unit F-List A Flashcards
Data
Information gathered from an experiment; firsthand evidence from the 5 senses or frim mechines that extend our scnses.
phenomenon
an event related to how the world and univerce work
modle
any repersentation of a system, or its componets, to help one study and understand how it work.
axis
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.
plausible
consistent with evedence.
rotate
to turn or spin around an axis
rotation
to turn or spin around an axis
time zone
a region throughout which the same standard time is used.(There are 24 time zones the world at approximately by meridians at 15 degree intervals, an hour apart)
equator
an imaginary circle that divides Earth into 2 halves called Northern Hemisphere and Southern Hemisphere.
hemisphere
One half of a sphere.
orbit
another term for revolution
revolution
a complete circle made by a planet around a sun or by a moon around a planet.( orbit)
revolve
to travel around another object in a circular or elliptical path.
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
full moon
the phase of the moon that occurs about 14 days after the new moon in which the complete lighten potion of the moon is visible from Earth’s surface and appears as a full circle.
first-quarter moon
the phase of the moon, occurring about seven days after the new moon, in which the lighten 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 dusk is illuminated
last-quarter moon
the phase of the moon that occurs about 7 days after the full moon in which the lighten portion of the moon that is visible from Earth’s surface is a half-circle.
lunar cycle
the revolution of the moon around Earth that produces the changing phases of the moon. One complete lunar cycle takes about 29.5 days.
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 from Earth’s surface.
waning
the phases of the moon when the illumination portion visible from Earth’s is deceasing (between the full and new moon)
waxing
the phases of the moon when the illuminated portion visible from Earth is increasing (between the new full moon)