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Crucigrama Sopa de Letras Hoja de Trabajo
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science cross word

Horizontales
A portion of matter
A filter that filters viruses,dissolved salts, and and chemicals
To make wastewater able to ingest
A lack of water
Verticales
A filter that filters out bacteria, protozoa, and solids
To process or filter water
A layer of something that filters
Water that has been contaminated