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Sun, earth,and moon

TermDefinition
Star A giant ball of superheated gas or plasma, composed of hydrogen and helium
Planet Spherical in shape, obirts the sun, and a lager mass then the objects around it.
Meteor A streak of light produced of a small pice of rock enters earths atmosphere
Comet A cold mixture of dust and ice that develops a trail of light
Constellation A group of stars that represent a figure ,animal or object
Geocentric An earth centered model
Heliocentric Sun centered model
Ellipse An ovel shape of the planets orbits
Sun Largest object in our solar system
Axis An imaginary line that passes from the north to South Pole
Rotation Spinning of the earth on its axis
Revolution The movement of one object around another
Orbit Path planets follow when they revolve around the sun
Solstice Sun causes longest or shortest day of the year
Equinox Earth is not tilled toward the Sun which causes equal day and night
Gravity Pulls all objects towards each other
Law of gravitation Every object in the universe attracts every other object
Inertia The tendency of an object to resist a change in motion
Phase Different shapes 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 the earth is directly between the moon and sun
Umbra Darkest part of a shadow where light is completely blocked
Penumbra Area of shadow where light is partially blocked
Tide Daily rise and fall of ocean water
Spring tide Higher tides during full and new moons
Neap tide Lower high tides during the first third quarter
Maria Dark smooth lava covered areas on the moon
Highlands Higher lighter areas on the moon covered the craters
Created by: user-1979077
 

 



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