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In this activity, learners explore how engineers develop pipeline systems to transport oil, water, gas, and other materials over very long distances.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

In this online Flash game, learners test their engineering know-how, moving a collection of mechanical parts onto a board to make complete a system of parts that will move a ball from start to finish.

In this activity, learners create a large film of soap and experiment with what can and cannot pass through it.