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In this water activity, learners discover ways to move water across the water table.

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.