1) a plot of the surface temperature (color) of stars vs. their luminosity (brightness) a) luminosity b) universe c) star d) Hertzsprung Russel Diagram 2) the intensity or brightness of light from a celestial body a) universe b) origin c) luminosity d) nebulae 3) the galaxy in which Earth and Sun are located a) origin b) Milky Way galaxy c) star d) nebulae 4) large cloud of gas and dust in interstellar space; the location of star formation a) nebulae b) Big Bang Theory c) Milky Way galaxy d) galaxy 5) a celestial body consisting of a mass of gas held together by its own gravity in which the energy is generated by nuclear reactions in its interior a) star b) Milky Way galaxy c) scientific theories d) nebulae 6) All of space and the matter space contains a) origin b) Hertzsprung Russel Diagram c) universe d) luminosity 7) A theory that states the universe began from one point billions of years ago and has been expanding ever since. a) Big Bang Theory b) universe c) Milky Way galaxy d) luminosity 8) the place or form from which something comes or is derived a) luminosity b) origin c) Milky Way galaxy d) Hertzsprung Russel Diagram 9) unifying scientific explanations for a broad range of hypotheses and observations that have been supported by scientific experiments a) galaxy b) scientific theories c) luminosity d) Milky Way galaxy 10) a large grouping of stars in space a) universe b) galaxy c) scientific theories d) nebulae

Universe Copy of Components of the Universe

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