Unit 9 Vocabulary Earth Cycles (22 Words)
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Transcript of Unit 9 Vocabulary Earth Cycles (22 Words)
Unit 9 VocabularyEarth Cycles
(22 Words)
AXIS is: Imaginary line that cuts through the center of a planet , such as Earth , that the planet spins around
AXIS is:
REVOLVE is:(Revolution) one orbit of an object in space around another object in space, such as the moon around the Earth or Earth around the sun.
REVOLVE is:
Rotate (Rotation) is: spinning of a planet,moon, sun or other object, around its axis
Rotate is:
rotate
the force of attraction between all masses in the universe; especially the attraction of the Earth's mass for bodies near its surface
GRAVITATIONAL ATTRACTION is:
GRAVITATIONAL ATTRACTION is:
ECLIPSE is:
When one solar system object passes between the Sun and another object, casting a shadow
ECLIPSE is:
EQUINOX is: One of two days in the year when the hours of daylight equal the hours of darkness over Earth as a whole
Vernal Equinox – marks the beginning of springAutumnal equinox -marks the beginning of autumn or fall
EQUINOX is:
SOLSTICE is:One of two days in the year when hours of daylight and hours of darkness are their greatest and least.
Summer solstice -marks the beginning of summer and the longest period of daylightWinter solstice -marks the beginning of winter and the shortest period of daylight
SOLSTICE is:
TERMINATOR is: The edge of the shadow between day and night on the Earth and moon
TERMINATOR is:
WAXING is: Moon phases from new moon to full moon, as the lit surface seen from Earth grows larger
WAXING is:
WANING is:Moon phases from full moon to new moon, as the lit surface seen from Earth grows smaller
WANING is:
GIBBOUS is: When the moon is more than half but less than fully illuminated
GIBBOUS is:
CRESCENT is: The Moon appears to be partly but less than one-half illuminated by direct sunlight – looks like a sliver.
CRESCENT is:
WAXING CRESCENT WANING CRESCENT
NEW MOON is: The moon’s unilluminated side is facing the Earth. The moon is not visible (except during a solar eclipse)
NEW MOON is:
Only visible during a solar eclipse
FULL MOON is: The Moon's illuminated side is facing the Earth. The Moon appears to be completely illuminated by direct sunlight.
FULL MOON is:
SOLAR ECLIPSE is: Occurs when the moon passes between Earth and the sun, blocking the sun’s light from Earth
SOLAR ECLIPSE is:
LUNAR ECLIPSE is: Occurs when the moon passes behind the Earth so that the Earth blocks the Sun’s rays from striking the moon
LUNAR ECLIPSE is
FIRST QUARTER is: One-half of the moon appears to be illuminated by direct sunlight. The right half of the moon appears lighted and the left side of the moon appears dark.
FIRST QUARTER is:
LAST QUARTER is: One-half of the moon appears to be illuminated by direct sunlight. The left half of the moon appears lighted and the right side of the moon appears dark.
LAST QUARTER is:
NEAP TIDE is: tides that are least extreme; happen twice a month, at first and last quarter moon phases
NEAP TIDE is:
SPRING TIDE is: Tides that are most extreme occur twice a month, at full and new moon phases
SPRING TIDE is:
HIGH TIDE is: tide when it is at its highest level at a particular time and place, takes place when the moon and sun are directly aligned with respect to the Earth.
HIGH TIDE is:
LOW TIDE is: Tide at its lowest level at a particular time and place. Lowest tides are reached when moon and sun are directly aligned with respect to the Earth.
LOW TIDE is: