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White, Jacob; Means, John A.; Hall, Tim; Shockley, Denise – Science Teacher, 2020
Polychlorinated biphenyls (PCBs) are a family of synthetic chemicals consisting of carbon, hydrogen, and chlorine atoms. PCBs have been produced commercially since 1929 in hundreds of industrial applications. Their continued production in the United States was phased out in the late 1970s, and strict disposal guidelines were regulated as adverse…
Descriptors: Science Instruction, Chemistry, Hazardous Materials, Animals
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Dobson, Amy; Feldman, Allan; Nation, Molly; Laux, Katie – Science Teacher, 2019
In 2018 the Gulf coast of Florida suffered extensive damage from harmful algal blooms (HABs), from as far north as Clearwater Beach south to Naples. The bloom lasted nearly a year, picking up in intensity during the late summer months. HABs occur when conditions such as reduced salinity, higher water temperatures, light saturation, and currents…
Descriptors: Climate, Oceanography, Inquiry, Water
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Rains, Stephanie; Whitworth, Brooke A. – Science Teacher, 2018
Alternative farming techniques are often more efficient and conserve resources more effectively than conventional farming, which can harm the environment with pesticides and synthetic fertilizers (Pimental 2005). To learn the theory, application, and related science concepts of sustainable farming techniques, students can collaborate to create an…
Descriptors: Agricultural Production, Conservation (Environment), Hazardous Materials, Scientific Concepts