Dramatically show atmospheric pressure in action! Use atmospheric pressure to pick up a lab stool, or to make a deceptively ordinary rubber mat nearly impossible to lift off a table. Simply place the Pressure Mat in the center of the seat of the lab stool and then quickly pick it up—the lab stool will be “stuck” to the mat and lifted off the floor. Place the Pressure Mat flat on a lab table and have students attempt to pick it up by its handle—they will soon discover just how strong atmospheric pressure really is. The thick, durable rubber Pressure Mat will withstand years of demonstrations. Complete instructions and a reproducible student worksheet are provided.
Concepts: Force, pressure, surface area, atmospheric pressure.
Time Required: 10 minutes
Materials Provided: Pressure mat, instructions, student worksheet.
Note: A flat-seated, wooden lab stool, such as AP6208, is recommended for the lab stool lift demonstration.
Additional ResourcesNo Additional Resources at the time.
Flinn Catalog/Reference Manual Page 655
Flinn Middle School Catalog/Reference Manual Page 362
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