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Crucigrama Sopa de Letras Hoja de Trabajo
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Section 2.1

Horizontales
A substance consisting of two or more different elements combined in a fixed ratio.
Anything that takes up space and mass.
A chemical element required for an organism to survive, grow, and reproduce.
Verticales
An element required for life in extremely small amounts.
Any substance that cannot be broken down to any other substance by chemical reactions.