Get your students thinking of all the different ways we humans are polluting our environment with this engaging word search puzzle worksheet. Puzzles make great no prep activities for early finishers, bell ringers, morning work, handouts, homework, lesson plan supplements, sponge activities, introductions to new topics, and sub files.The 27 hidden vocabulary words are: Acid Rain, Agricultural, Air, Chemicals, Coal, Construction, Deforestation, Dumping, Forest Fires, Fumes, Garbage, Gas, Indust