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Learners build pan pipes out of drinking straws by cutting them to different lengths. Then, learners make music by blowing across the straws and playing some well-known songs.

In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

This activity was designed for blind learners, but all types of learners can explore the process of extrusion used to produce pipes and wires in industry.