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Moon Phases
Ch. 18 Vocabulary
17
Science
6th Grade
09/30/2011

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Cards

Term
AUTUMNAL EQUINOX
Definition
Day of the year that marks the beginning of fall in the Northern Hemisphere. (September 23rd)
Term
AXIS
Definition
Imaginary line that passes through Earth's center at the North and South Pole
Term
EQUINOX
Definition
The two days of the year when neither the northern or southern hemisphere is tilted toward or away from the sun
Term
GRAVITY
Definition
The force between two objects; it's magnitude depends on their masses and the distance between them
Term
LATITUDE
Definition
Distance north or south from the equator. Is measured in degrees
Term
LUNAR ECLIPSE
Definition
The blocking of sunlight to the moon which happens when Earth is directly between the Sun and Moon
Term
NEAP TIDE
Definition
The tide with the lest difference in high and low tide. Happens when the sun and moon are at right angles to each other
Term
ORBIT
Definition
Path an object takes as it revolves around another object in space.
Term
PHASE
Definition
one of the different shapes of the moon as we see it on Earth
Term
PENUMBRA
Definition
Part of the eclipse (covering) shadow surrounding the darkest part of the shadow
Term
REVOLUTION
Definition
Movement of an object around another object. Ex: Earth revolves around the Sun
Term
ROTATION
Definition
The spinning of a planet on its axis. Happens day and night
Term
SOLAR ECLIPSE
Definition
The blocking of sunlight to Earth and happens when the moon is between the Sun and Earth. (This rarely happens)
Term
SOLSTICE
Definition
The two times a year when the sun is at its greatest distance from the celestial equator: about June 21,or about December 22
Term
SPRING TIDE
Definition
The tide with the greatest distance between high and low tide and happens when the Sun and Moon are aligned in a straight line with Earth
Term
UMBRA
Definition
The darkest part of shadow during a solar eclipse.
Term
VERNAL EQUINOX
Definition
The day of the year that marks the beginning of Spring (March 21st)
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