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Solar System

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. The attractive force between two objects; its magnitude depends on their masses and the distance between them.
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(planets revolve around the sun;moons 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 waters 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.
Meteroid A chunk of rock or dust in space.
Meteor (shooting start): a streak of light in the sky produced by the burning of a meteroid in Earth's atmosphere.
Meteorite A meteroid that has hit Earth's surface.
Space station A man made laboratory orbiting the Earth.
Created by: 4012267