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Moon-sun-earth

TermDefinition
Satellite A body that orbits a planet
Star A giant ball of superheated gas
Planet Spherical, orbits the Sun with a larger mas stem nearby objects
Meteor A streak of light produced when a small piece of rock or ice burns up in earths atmosphere
Comet A cold mixture of dust and ice that develops a long trail of light as it approaches the sun
Constellation A pattern or group of stars that people imagine represents a figure, animal or object.
Geocentric Earth centered model
Heliocentric Sun centered model
Ellipse A oval shape of planets orbit
Sun Largest object in our solar system
Planet
Axis An imaginary line that passes from North to South Pole
Rotation Spinning of earth on its axis
Revolution The movement of one object around another
Orbit Earths path
Solstice Sun appears highest in the sky
Equinox Halfway between solstices neither hemisphere is tilted toward the sun
Gravity The force that attracts all objects toward each other
Law of universal gravitation States every object in the universe attracts every other object the strength of the force of gravity between two objects depends on the masses of the objects and the distance between them.
Inertia Tendency of an object to resist a change in motion
Created by: user-1979041
 

 



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