Learning Activity 2.4 : Expanding a Marshmallow Under Vacuum Video

This video, published by Erie Community College, features an experiment demonstrating the effects of placing a marshmallow in the vacuum chamber of a Rough Vacuum System Trainer (RVET) and reducing the pressure. The presenter provides step-by-step instructions for conducting the experiment and measuring the results. Narration is provided throughout the video to explain the changes observed in the marshmallow as the pressure is reduced.

The video corresponds with lessons in a student lab manual and instructor guide that accompanies the Introduction to Vacuum Technology E-book. This textbook provides an introduction to vacuum technology and science, and features topics curated to the needs of technicians in a production environment. The guides include student questions and a data table corresponding to the video.

The video runs 4:56 minutes in length. The E-book, and related student and instructor guides, videos, and labs are available to view separately.