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Sun-Earth-Moon

TermDefinition
Satellite A body that orbits a planet
Star A giant ball of superheated gas, or plasma, composed of hydrogen and helium.
Sun Largest object in our solar system
Planet Spherical, orbits the Sun, with a larger mass than nearby objects.
Meteor A streak of light created by rock in space
Comet Made of gas, dust, and ice that develops tail as it revolves around the sun
Constellation A pattern or group of stars that people imagine.
Geocentric Earths centered model is known as a geocentric
Heliocentric A sun centered model called the heliocentric model
Ellipse An oval shape rather than a perfect circle
Axis An imaginary line that passes from the North Pole through the Earths center to the South Pole.
Rotation Spinning of earth on its axis is called rotation
Revolution The movement of one object around another.
Orbit An oval shape.
Solstice When the northern or southern hemisphere is at its strongest tilt towards the sun.
Equinox When neither hemisphere is tilted towards the sun.
Gravity When this force attracts all objects toward each other
Inertia The tendency of an object to resist in motion
Law of universal gravitation Pull of gravity depends on mass and distance.
Phase Different shape of the moon you see
Solar eclipse When the moon passes directly between the Earth and Sun.
Lunar eclipse Occurs during a full moon when Earth is directly between the moon and Sun
Umbra Darkest part of a shadow where light is completely blocked
Penumbra Area of a shadow where light is partially blocked
Tide Daily rise and fall of ocean water
Spring tide Higher high tides during full and new moons
Neap tide Lower high tides during the first and third quarter moons
Maria Dark, smooth, lava covered areas on the moon
Highlands Higher lighter areas on the moon covered with craters
Created by: user-1978843
 

 



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