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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 or ice known as a meteoroid burns up as it enters earths atmosphere
Constellation A pattern or group of stars that people imagine represents a figure animal or object
Geocentric Earth centered
Heliocentric Sun centered
Ellipse Oval shape of the planets orbits
Sun Largest object in our solar system
Axis Imaginary line that passes through the north and South Pole and the center of the earth
Rotation The spinning of the earth on its axis
Revolution The movement of one object around another
Orbit Earths path
Solstice One day per year when the sun appeared highest in the sky
Equinox Neither hemisphere is tilted toward the sun
Gravity A force that attracts all objects down
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 The different shape of the moon you see
Solar eclipse When the moon passes directly between the sun and earth during a new moon
Lunar eclipse Occurs during a full moon when earth is directly between the moon and the sun
Umbra The darkest part of the 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 moons
Neap tide Lower high tides 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
Comet A comet is a cold mixture of dust and ice that develops a long tail of light
Created by: user-1979175
 

 



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