Measure a Changing Volcano
Description

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Measure a Changing Volcano Demonstration (Acrobat (PDF) 645kB May22 18)
Video of the demonstration: YouTube or MP4 Video (MP4 Video 33.9MB May23 18)
Context
This can be used as in class exercise with upper elementary to high school students. It also makes a great interactive outreach demonstration.
Teaching Notes
- Although you can use flour, corn starch, or drywall powder, these substances have more allergy and irritant potential. Thus sand is generally preferable.
- Balloon pumps to inflate the balloon (i.e. magma) are definitely preferable for public events where the presenter may need to do the demonstration multiple times. However, they are not as necessary for classrooms where the inflation may only be done once or twice.
- The "Junior Scientist" activity booklet.pdf (Acrobat (PDF) 438kB Jun15 18) can be printed and used to record the distance between stations as well as general observations.
Reference Information
Author/Developer: UNAVCO
- Original webpage: https://www.unavco.org/education/outreach/demonstrations/measure-changing-volcano/measure-changing-volcano.html
- The activity was presented as part of the EarthScope ANGLE Educator Workshops. The associated presentation is Alaskan Volcanoes & Hazards Presentation.
- Contact ANGLE with questions or comments.