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Space & Lunar Phases

TermDefinition
Revolution One orbit of an object in space around another object in space. Such as the moon around the earth
Rotation Spinning of a planet, moon, sun, or other object around its axis
Axis Imaginary line passing through the center of a planet, that the planet spins around
Equator Imaginary line around the middle of the earth, halfway between the two poles
Comets Solar system object made of mostly ice, which follows a long narrow orbit around the sun. Occasionally comes near the sun
Waxing Phase Moon phase from new moon to full moon as the lit surface of the moon seems to grown larger
Waning Phase Moon phase from full moon to to new moon as the lit surface of the moon seems to grown smaller
Sun The star around which the earth orbits.
Hemisphere One half of a sphere. The earth divided at the equator or at the prime meridian and international date line.
Earth the planet on which we live; the world.
Orbit Path an object in space follows as it revolves around another object.
First Quarter Moon The First Quarter Moon is a primary Moon phase when we can see exactly half of the Moon's surface illuminated
Moon A natural object that revolves around a planet
Equinox One of two days in the year when the hours of daylight equal the hours of darkness over earth as a whole
Solstice One of two days in the year when hours of daylight and hours of darkness are at their greatest and least.
Third Quarter Moon The phase of the moon at which the moon, as viewed from Earth, appears to be half illuminated by the sun, on its easternmost side
Planets a celestial body moving in an elliptical orbit around a star.
Full Moon The phase of the moon in which its whole disk is illuminated.
New Moon the phase of the moon when it is in conjunction with the sun and invisible from earth
Meteors A piece of rock from space that enters the earths atmosphere and burns creating a bright light across the sky
Asteroids An object of small rock, metal, and ice that are smaller than planets and revolve around the sun
Neap Tide Tides that are least extreme. Happen twice a month, at first and last quarter moon phases
Spring Tide Tides that are the most extreme. Happen twice a month at full moon and new moon phases
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