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Space / Solar System

TermDefinition
solar system consists of the sun, planets, their moons, meteors, asteroids, and comets
Milky Way Galaxy the galaxy in which our solar system is located
gravity the force that pulls two objects together; it pulls us toward Earth and it keeps the planets in motion around the sun
astronomy the study of the moon, stars, and other objects in space
axis an imaginary line that passes through Earth’s center and the North and South poles, about which Earth rotates
rotation the spinning motion of a planet about its axis
revolution the movement of an object around another object (planets revolve around the sun; moon(s) revolve around their planets)
orbit the path of an object as it revolves around another object in space
tides the daily rise and fall of Earth’s oceans on shores
satellite any object that revolves around another object
phase one of the different shapes of the moon as seen from Earth
crater a round pit on the moon’s surface
maria dark, flat, regions on the moon’s surface
core the central part of the sun, where nuclear fusion occurs
comet (“dirty snowball”): a ball of ice and dust whose orbit is usually a long, narrow ellipse; it has a “glowing tail” up to 100 million miles long
asteroids (minor planets or planetoids): objects revolving around the sun that are too small and too numerous to be considered planets
asteroid belt the region of the solar system between the orbits of Mars and Jupiter where many asteroids are found
meteoroid a chunk of rock or dust in space
meteor (shooting star): a streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere
meteorite a meteoroid that has hit Earth’s surface
space station a man-made laboratory orbiting the Earth
Created by: dank meme
Popular Earth Science sets

 

 



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