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Sun- Moon-Earth

TermDefinition
Satellite Is a body that orbits a planet.
Star Is a giant ball superheated gas , or plasma, composed of hydrogen and helium.
Planet Spherical, orbits the sun , larger mass than nearby objects
Meteor Is a streak of light produced when a small piece rock or ice burns up as it enters earth atmosphere.
Comet Is a cold mixture of dust and ice that develops a long trail of light as it approaches the sun.
Constellation Group of stars that represent a figure, animal , or a object .
Geocentric Earth - centered model
Heliocentric Sun- centered model
Ellipse An oval shape rather than a perfect circle.
Sun Largest object in our solar system
Axis A imaginary line that passes from the North Pole , through the center of the earth’s center, and to the South Pole.
Rotation The spinning of Earth on its axis
Revolution The movement of one object around another.
Orbit Around the sun is an ellipse.
Solstice One day per year when the sun appears the highest or lowest.
Equinox Neither hemisphere is tilted towards the sun
Gravity A force that attracts all objects toward each other
Law of universal gravitation It states that even object in the universe attracts every other objects and force depends on mass and distance
Inertia Is the tendency of an object to resist a change in motion.
Gravitation The fundamental force of attraction between any tow objects that must have mass or energy.
Phases Different shapes of the moon you see
Solar eclipse When the moon passes directly between the earth and sun during a new moon .
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
Springs tide Higher high tides during and new moon
Neap tide Lower high tides during the first and third quarter moons
Highlands Higher lighter areas on the moon covered with craters.
Created by: user-1979398
 

 



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