Orbit - the path that a body follows as it travels around another body in space, comet - a small body of ice, rock, and cosmic dust that follows an elliptical orbit around the sun and that gives off gas and dust in the form of a tail as it passes close to the sun, Telescope - an instrument that collects light or other electromagnetic radiation from distant objects and concentrates it to make the objects appear larger or brighter, Parallax - an apparent shift in the position of an object when viewed from different locations, Asteroid - a small, rocky object that orbits the sun; most asteroids are located in a band between the orbits of Mars and Jupiter, Universe - space and all the matter and energy in it, Astronomical Units(AU) - the average distance between Earth and the sun; approximately 150 million kilometers (symbol, AU), Light-year - the distance that light travels in one year; about 9.46 trillion kilometers, Mass - a measure of the amount of matter in an object, Weight - the force that gravitation exerts upon a body, equal to the mass of the body times the local acceleration of gravity: commonly taken, in a region of constant gravitational acceleration, as a measure of mass., Force - a push or a pull exerted on an object that may change the motion or shape of the object; force has strength and direction, Gravity - a force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases, Solar Nebula - a rotating cloud of gas and dust from which the sun and planets formed, Protoplanetary disk - a disk of gas and dust orbiting a newly formed star, from which planets may eventually form, Phase - in astronomy, the change in the sunlit area of one celestial body as seen from another celestial body; phases of the moon are caused by the changing positions of Earth, the sun, and the moon, Eclipse - an event in which the shadow of one celestial body falls on another, Seasons - a division of the year that is characterized by recurring weather conditions, and determined by both Earth's tilt relative to the sun and Earth's position in its orbit around the sun,

Quarter 1 Word Wall Vocabulary Games

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