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Sun , earth , moon

TermDefinition
Satellite Is a body that orbits the planet
Star A giant ball superheated gas, or plasma composed of hydrogen
Planet Spherical, orbits the Sun, with a larger mass than nearby objects
Comet is a cold mixture of dust and ice that develops a long trail of light as it approaches the sun
Meteor Is a streak of light produced when a small piece of rock or ice
Constellation A pattern or group of stars
Geocentric an earth -centered model
Heliocentric Sun - centered
Ellipse Oval shape, rather than a perfect circle
Sun Largest object in our solar system
axis Imaginary line that passes from the north pole
Rotation The spinning of earths on its axis
Revolution Is the movement of one object around another
Orbit Earths path Around the sun is ellipse an oval shape
Solstice either the northern or southern hemisphere is at its strongest tilt towards the sun
equinox means “equal night” night and day both are 12 hours
Gravity The force that attracts all objects towards each other
Law of universal gravitation Every object in the universe attracts every 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 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 water ocean
Spring tide Higher high tides during full and new moons
Neap tide Lower high tide 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-1978832
 

 



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