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Crossword Word Search Worksheet
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STARS AND SUN

Across
a star that explodes and becomes very bright in the process
to put into a proper or systematic order
a human society having dense population, large public buildings, a central authority and, often, a system of writing or other means of recording information.
the act of finding out about something
the simplest and lightest and most abundant element in the Universe
to set up or found
Down
a movement forward
of or relating to the practice of science
to set up or lay the groundwork for
the real physical matter of which a person or thing consists
a possession that is owned by someone
everything that exists everywhere
to find out about the existence, presence, or fact of something
material produced by or used in a reaction involving changes in atoms or molecules