THIS DAY IN SCIENCE: Autumnal Equinox in 2015

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Teacher Demo: Toxic Path: Bioaccumulation

Humans have had a huge effect on the environment by producing and releasing pollutants. Pollution leads to a variety of issues. Some of the better-known pollutants include greenhouse gases, which are the main cause of global warming; acid-producing air pollutants that result in acid rain; and persistent toxic chemicals, which can result in the death of the top predators in ecosystems.

15379629 - fish food chain

In this demo, containers represent organisms in a food chain and beads represent a water-borne toxin to which the organisms are exposed.

Click here to download the complete demo….

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