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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.
Planet Spherical, orbits the sun, with a larger mass than nearby objects.
Meteor A streak of light produced when a small piece of rock.
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.
Sun Largest object in our solar system.
Geocentric Earth center model.
Heliocentric A sun center.
Ellipse An oval shape.
Astronomy The study of space.
Axis An imaginary line that passes to the North Pole to the South Pole.
Rotation Spinning of Earth on its axis.
Revolution The movement of 1 object to another.
Orbit earth path around the sun.
Solstice Either the Northern and Southern Hemisphere is at its strongest tilt towards the sun.
Equinox Equal night
Gravity That pulls objects towards 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 shapes of the moon you see.
Solar eclipse When the moon passes directly between the Earth and the Sun.
Lunar eclipse Occurs during a full moon when Earth is directly between the moon and the 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 or new moons.
Neap tides Lower high tides during the first and third quarter moons.
Maria Dark, smooth lava covered areas on the moon.
Highlands Higher light areas on the moon covered with craters.
Created by: user-1978829
 

 



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