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Sun earth moon

TermDefinition
Satellite Body that orbits a planet
Star Giant ball of superheated gas, plasma, or composed of hydrogen and helium
Planet Spherical, orbits the Sun with a larger mass then nearby objects
Meteor A streak of light produced when a small piece of rock or ice
Comet A cold mixture of dust and ice
Constellation A pattern or group of stars that people imagine represents a figure, animal, or object
Geocentric An earth centered model
Heliocentric Sun centered
Ellipse Oval shape of the planets orbits
Sun Largest object in our solar system
Axis An imaginary line that passes from the North Pole through the earths center to the South Pole
Rotation The spinning of earth on its axis
Revolution The movement of one object around the other
Orbit Earths path around the sun
Solstice One day per year when the sun appears highest in the sky
Equinox “Equal night” when the sun passes directly over head at the equator at noon
Gravity A force that attracts all objects toward each other
Law of universal gravitation Every object in the universe attracts every other object
Inertia The tendency of an object to resist a change in motion
Phase Different shape of the moon you see
Solar eclipse When the moon passes directly between the moon 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 huge tides during full and new moons
Neap tides Lower high tides during the first and 3rd quarter moons
Maria Dark smooth lava covered areas on the moon
Highlands Higher lighter ares on the moon covered with craters
Created by: user-1979071
 

 



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