Theme 4: Please Pass the Salt



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Snow and ice removal are needed in winter for safe roads. Salt is very effective along with other chemicals, but these may cause harm to plants, wildlife, and humans. Salt seeps into groundwater and may create problems with water resources. High levels of salt affects the amount of oxygen in water, organism growth, reproduction, and food sources. Whether the chemicals cause harm to an organism depends on the amount of chemicals and how long the organism is exposed to them. Salt can also reduce soil minerals and absorb water that plants need. Other impacts on plants include leaf damage, stunted growth, and death. Salt and deicing chemicals cause faster rusting of cars, bridges, and other structures.

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Curriculum and Instruction | Engineering | Science and Mathematics Education

Activity 3: Rooting for You



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